Vitalik Buterin praised Polymarket, Railgun, Farcaster, and Signal as examples of decentralized applications that embody good social philosophy

Quotes that support claims

Buterin praised a handful of decentralized applications that align with Ethereum’s long-term vision. These include Railgun, Farcaster, Polymarket, and the messaging app Signal. On the flip side, he criticized platforms such as Pump.fun, Terra/Luna, and the collapsed FTX exchange, describing them as harmful examples of what not to build.

Railgun stood out as a key example. While it offers privacy features similar to Tornado Cash, it goes a step further by implementing Privacy Pools.

You don't need to educate users (at the very least, you definitely don't put the education burden upfront). You build apps that do the right thing behind the scenes by default. Signal is a reasonably good example of this (though it has significant flaws of its own). Farcaster is also a good example of this.

In a follow-up post, Buterin told a user that in his opinion, crypto privacy protocol Railgun, Web3 social protocol Farcaster, decentralized prediction market Polymarket and messenger app Signal are examples of apps with a good social philosophy.

“You build apps that do the right thing behind the scenes by default. Signal is a reasonably good example of this, though it has significant flaws of its own. Farcaster is also a good example of this,” Buterin said.