Farcaster

/farcaster “Actions are performed onchain only when security and consistency are critical. Use of onchain actions is kept at a minimum to reduce costs and improve performance,” Farcaster’s website says. Storing user identities onchain offers another way to verify that people are who they say they are, since their profile will be connected to the other activities they do with that wallet. Of course, it’s possible for the same person to create multiple wallets, so this isn’t foolproof — but if someone’s wallet is relatively blank, then any sketchy behavior will be met with more skepticism.