The Fediverse is to Nostr what the legacy telephone system was to the Internet.
That is not censorship!
This conversation is frustrating exactly because people think a group “excluding” someone is “censoring” them. Except that's not what censorship is.
Censorship is about you not being allowed to say what you want on a sign outside your own bar.
You complaining about a different bar, not letting you in because they don’t like you. That’s not censorship, that’s just people being jerks to you… and that is allowed. Nobody has to listen to you if they don't like you. Nobody has to even let you in the door to where they hang out if they don't like you, especially if the reason they kicked you out was something you said.
It's called moderating the space you operate. This is literally why you can’t walk into a bar like you own the place. If you don't like it, start your own damn instance. You don't have any right to make people tolerate you if they don't want to.