Ethereum solo validators that censor blocks should ‘be tolerated,’ says Buterin

Ethereum solo validators that censor blocks should ‘be tolerated,’ says Buterin



Ethereum co-founder Vitalik Buterin believes that solo validators that choose not to include certain transactions should “be tolerated” to stop the Ethereum community from becoming the “morality police.”

Vitalik Buterin made the comment in reply to a Twitter poll from latetot.eth, discussing a hypothetical scenario whereby a validator censors a transaction that doesn’t align with their beliefs.

The thread, published on Oct. 17, asked what should happen if a solo validator, in a country at war with another, decides not to process a block because it includes donations to the opposing military force. 

According to Ethereum’s co-founder, the answer for a censorship case should be aligned with the level of transgression.

The post attracted notable attention, as Vitalik explained in the thread that any other answer would potentially lead to turning the ETH community into morality police: 

In Ethereum proof-of-stake (PoS), validators decide what transactions to include in their blocks if any. PoS is a modern consensus method that powers decentralized finance (DeFi) projects and cryptocurrencies.

Also answering the thread, Martin Köppelmann, co-founder of Gnosis and a long time Ethereum DApp developer, said he agreed with tolerating the validator in that situation while warning about how MEV-boost censorship rising in Ethereum following the Merge. 

Although the thread discusses a hypothetical scenario, concerns about censorship in the Ethereum network surged last week, with 51% of Ethereum blocks being compliant with the United States Office of Foreign Assets Control (OFAC) standards as of Oct. 14, as MEV-Boost relays take over market share one month after the Merge. 

Related: Ripple wants to bring Ethereum smart contracts to the XRP Ledger

MEV-Boost relays are centralized entities acting as trusted mediators between block producers and builders. All Ethereum PoS validators can outsource their block production to other builders. Due to Ethereum’s upgrade to a PoS consensus, MEV-Boost has been enabled to a more representative distribution of block proposers, rather than a small group of miners under proof-of-work (PoW).

As noted in a recent opinion piece Slava Demchuk, CEO and co-founder of AMLBot, the Ethereum upgrade could bring modifications in anti-money laundering (AML) and Know Your Customer (KYC) practices in the crypto industry. He stated:

“U.S. regulators are increasingly expressing concerns about the huge sums circulating in DeFi without any control. As the Ethereum blockchain serves as the primary chain for most tokens, its recent shift from PoW to PoS may be used as an argument for their attempts to influence (at least a part of) the decentralized market.”