Underrated benefit of social networks based on custody of a key pair like Farcaster is that you can sign content.

Important in the world of deep fake video and fake celebrity lookalike accounts.

Enabling trustworthy AI through cryptographically verifiable computing

UX for self custody is obviously problematic right now, people will lose their keys or get hacked, but that will change with real adoption of smart contract wallets.

(Ethereum account abstraction will exponentially increase the poor progress we've seen on that so far)