Would be funny if there's a nostr client that has, during registration, a filter question "Are you pro or anti free-speech?" and the options are (pro/anti/pro-but...).

If they select "pro" then the client behaves normally,

but if they select "anti" or "pro-but..." then the client/app would put their npub on a list and lock them out of the relay config page, only have them post and read from one relay owned by the client, and if they say bad words then the client would lock that npub out of their relay (and any other relay through from their client) and show them a message "you've been banned".