Lists exist too.

In this case Rich Nost is referring to is reporting, which essentially is a Quasi-Censorship tool.

He wants an implementation where someone who likes another or multiple cryptocurrency technologies should be Censored, and grouped in with malicious, and evil people like illicit porn producers, spammers, and balant scammers.

Nostr is an open protocol, eventually we will have fiat enjoyers on here, and that will make Nostr better 😃 because then we are on an even playing field where fiat can't use tools of censorship to stop Sovereignty advocate voices.