rogerver Founder Posts: 1556 Joined: Thu Sep 10, 2015 6:55 am A question for /u/Nullc (Greg Maxwell) on censorship More than a month ago, I publicly posted the following question on Reddit for Greg Maxwell.There is no doubt he saw it, but to date has refused to reply.Greg, I would still appreciate hearing your reply.Greg, since you have spent plenty of time on /r/BTC today debating the censorship issue, I'd like to hear your thoughts on Theymos explicitly censoring my own post on block sizes on /r/Bitcoin.Was this acceptable behavior?Why, or why not?/media/CN3NtxGU8AAllZb.png:large /topic7039.html rogerver Founder Posts: 1556 Joined: Thu Sep 10, 2015 6:55 am Re: A question for /u/Nullc (Greg Maxwell) on censorship Update: Greg has since made all sorts of references to this thread, and made all sorts of comments about it, but has never actually answered the questions about Theymos' policies./r/btc/comments/4zqd7g/roger_ver_does_your_bitcoin_classic_pool_on/d6yf0u5 /topic7039.html bitkilo Global Moderator Posts: 2088 Joined: Sat Sep 26, 2015 4:08 am Re: A question for /u/Nullc (Greg Maxwell) on censorship Update: Greg has since made all sorts of references to this thread, and made all sorts of comments about it, but has never actually answered the questions about Theymos' policies.

/r/btc/comments/4zqd7g/roger_ver_does_your_bitcoin_classic_pool_on/d6yf0u5Has theymos himself made any comments on this topic, has he tried to explain his actions at all?./The Bitcoin StoreJust click the QR code to your right, for donations, .thank you.Anduck Posts: 6 Joined: Tue Oct 06, 2015 11:58 pm Re: A question for /u/Nullc (Greg Maxwell) on censorship LiteCoinGuy Gold Bitcoiner Posts: 2505 Joined: Mon Sep 21, 2015 9:00 am Re: A question for /u/Nullc (Greg Maxwell) on censorship you are free to post here.------------@topici dont think that Maxwell is in favour of theymos ridiculous censoring but he does not want to put more fuel in the fire.********************************************///r/Bitcoin/ rogerver Founder Posts: 1556 Joined: Thu Sep 10, 2015 6:55 am Re: A question for /u/Nullc (Greg Maxwell) on censorship I made the entire moderation log for /r/BTC public here.Feel free to point out any examples of me censoring anyone on /r/BTC.

(You won't find any)My user ID is Memorydealers /topic7039.html Anduck Posts: 6 Joined: Tue Oct 06, 2015 11:58 pm Re: A question for /u/Nullc (Greg Maxwell) on censorship I made the entire moderation log for /r/BTC public here.Feel free to point out any examples of me censoring anyone on /r/BTC.bitcoin gap limit(You won't find any)My user ID is MemorydealersWhy can't I find the occasion where you banned me from the r/btc subreddit, permanently?bitcoin gewinnCensorship in action?Can you please provide me the log statement about me getting banned?bitcoin going downI couldn't find anything about this from the "log" you provided.bitcoin horia vuscan

As you know, I am permanently banned from r/btc, so shouldn't there be something about this in the "moderation log"?There are other stuff too, obviously, but let's focus on this one (me getting banned from your subreddit), because this alone is enough.So, why am I banned from r/btc?bitcoin hexdumpI asked many times, even via PM.bitcoin heuteYou never answered.Are you aware of that some people get rate-limited (by Reddit, but only as anti-spam system) because they have different opinions than the most in there?This rate limiting is effectively crippling users in unfair positions, as you know and have been told several times.The content these rate-limited people post are not spam, but are considered spam by the automatic bot.Reddit suggests subreddit mods to use the whitelist feature when this happens.You and your moderator team have chosen to allow this censorship happen.

Peoples abilities to use the subreddit are restricted based on their opinions.But you know all this already, because you've been told all this several times.And you've acknowledged you understand it, but you've done nothing to fix it.Instead, you've done plenty of things to make it worse.So, I explained to you (r/btc, mods and you) several times these things, which after I got banned.I got first banned by one of your moderators (Bitcoinxio) because he didn't understand what I told him.It might have been a genuine misunderstanding by him, or maybe it was intended.It certainly looks like intended, because after I pm'd him (actually mod chat, so should be in the logs too??), he quieted me after I tried to explain him how mods picking who gets to talk is censorship.This is when they said that only "prominent bitcoin figures" get the right to talk via whitelisting.But who's "prominent bitcoin figure" and why should that matter when we're discussing the ability to post / censorship?Then you expanded the ban to permanent after I had a chat with you.

You replied to me and removed my ability to answer back.rogerver Founder Posts: 1556 Joined: Thu Sep 10, 2015 6:55 am Re: A question for /u/Nullc (Greg Maxwell) on censorship You can't find it because it never happened./topic7039.html iFixBTCmemoryIssues Gold Bitcoiner Posts: 2683 Joined: Tue Nov 24, 2015 9:03 pm Re: A question for /u/Nullc (Greg Maxwell) on censorship If you are running a version of Bitcoin Core, stop using it.Upgrade to Bitcoin Unlimited or Classic immediately.Fix Your Unconfirmed Transaction.Vote for the future of our Bitcoin network!Who is online Users browsing this forum: No registered users and 3 guestsDuring a recent presentation at the Coinbase offices in San Francisco, Blockstream CTO and Bitcoin Core contributor Greg Maxwell shared his thoughts on Zcash, Monero, and a variety of other privacy-focused alternatives to bitcoin.While Maxwell had generally positive remarks to share about Zcash and Monero, the bitcoin developer wasn’t nearly as kind when discussing some of the other options on the cryptocurrency market such as Dash.

It should be noted that, when discussing these privacy-focused altcoins, Maxwell was referring to the technologies implemented in these alternative cryptocurrencies rather than the tokens themselves.When first discussing Zcash, Maxwell pointed out that the altcoin uses very modern cryptography to do “some very cool stuff”.“Effectively, Zcash directly hides the amount and the transaction metadata,” said Maxwell.“And it hides it completely.According to the longtime Bitcoin Core contributor, the lack of publicly-available transaction amounts and metadata means an observer cannot figure out the linkage between shielded (private) transactions, although Zcash transactions are not private by default.“It’s basically perfect from that perspective, but you always have to be careful when thinking about just a little perspective at a time,” added Maxwell.Maxwell also pointed out that Zcash is not unconditionally sound and requires a trusted setup.“A number of parties have to get together, and if they cheat, they can break the crypto and create unbounded, undetectable inflation,” explained Maxwell.

“If there was a crypto break or the trusted setup were broken, [that’s] very bad news.“They did a bunch of stuff in the Zcash altcoin with having a good ritual to increase trust in the trusted setup, but they have to redo this procedure to upgrade the crypto over time, so it’s a vulnerability.” According to Maxwell, another issue with Zcash is the never ending growth of the list of spent coins, which must be stored by full nodes and has a negative effect on the system’s ability to scale.In addition to this scalability concern, Maxwell also pointed out that Zcash uses “new crypto on top of new crypto on top of new crypto,” which he clarified doesn’t mean that the system necessarily insecure, just that it’s new.In Maxwell’s view, the real issue with Zcash is the time that it takes to sign a shielded transaction.“The real killer right now for Zcash is that the signing speed is horribly slow – we’re talking like minute-scale operations to sign a private transaction,” said Maxwell.

“And as a result, Zcash couldn’t plausibly make the private transactions mandatory, so they’re optional.” Maxwell went on to claim that, due to the time it takes to sign a shielded transaction, very few transactions on the chain are private.Although the raw data shows roughly 24 percent of Zcash transactions are private, Maxwell claimed the real number is closer to 4 percent when you account for the fact that miners are forced to receive new coins via a private address.“As a result, the anonymity set that this perfect anonymity system is achieving isn’t really all that good,” said Maxwell.“I think it’s a cool thing, and I’m really glad that people are trying it out, but it’s not the kind of proposal that I’d like to take to something like Bitcoin today.” Monero is an altcoin that originally forked away from Bytecoin, which Maxwell referred to as the altcoin with “probably the scammiest launch” of anything he had ever seen.Having said that, Maxwell pointed out that Bytecoin also had “cool crypto” in it that hadn’t been used in a cryptocurrency up to that point.

Monero uses ring signatures, which Maxwell described as follows: “I am spending one of these four coins, but I won’t tell you which one, and I’ll show you this nonce so I can’t spend [it] twice.” According to Maxwell, Monero originally had a problem in that the amounts used in transactions were not private.Recently, Monero adopted their version of Confidential Transactions, which blinds the amounts used in transactions, that works with ring signatures.Maxwell explained that this setup is similar to how a combination of CoinJoin and Confidential Transactions would work in Bitcoin.“This system has the benefits of Confidential Transactions, but it also has the disadvantages of the ring signature [system],” Maxwell said of Monero.According to Maxwell, Monero shares some issues found in Zcash.For one, Monero also has a forever growing list of spent coins, which has a negative effect on scalability.Additionally, Monero is not unconditionally sound today, but an upgrade could remove that issue.

In terms of a more direct contrast with Zcash, the crypto used in Monero has been around longer, meaning fewer assumptions are made about it.Another advantage of Monero mentioned by Maxwell near the end of his talk was the fact that the system is private by default.Although Maxwell didn’t spend too much time on altcoins other than Zcash and Monero, he did take the time to discuss Dash, which is sometimes brought up in these sorts of conversations.The Blockstream CTO didn’t mince words when it came to this particular alternative cryptocurrency.“The other cryptographically-private altcoin people talk about a fair bit is Dash,” said Maxwell.“Dash isn’t cryptographically private at all.Actually, I had a slide in the deck that was like, ‘Dash.LOL,’ and nothing else.It’s snake oil, and I’m just sort of beside myself about it.” Maxwell went on to explain that Dash basically has a CoinJoin implementation, which doesn’t require the creation of a new cryptocurrency (it’s already used in Bitcoin on an opt-in basis).

“They’ve done this insecurely many times in the past, I have no clue if the current version is secure or not,” Maxwell added.“It’s not really on the same level as something like Zcash or Monero.Maybe it’s better than doing nothing.I don’t know.” Other than Dash, Maxwell also pointed to some “devastating failures” in other privacy-focused cryptocurrencies, such as Zcoin and Shadowcash.With Zcoin, there was a bug that allowed an attacker to create new Zcoin tokens out of thin air and sell them on an exchange before anyone noticed.In the case of Shadowcash, it turned out that the system actually offered no privacy improvements at all due to a bug.Maxwell pointed out that Monero also had a severe issue with their original RingCT implementation, which made it through the peer-review process at the Ledger journal; however, according to Maxwell, this issue was discovered by someone at Blockstream and the Monero team themselves before it was implemented.“It’s difficult to distinguish snake oil from real stuff and vet claims,” said Maxwell of privacy in cryptocurrencies more generally.