This is qualitatively different from (say) BlueSky which is still de-facto operated by a single company.

Do you want to have to set up a new account every time someone decides you’re not following their rules? I get it, it’s their server, their rules and therein lies the problem, 1000 servers with 1000 admins literally censoring what people can and cannot say. At least on Nostr, if you don’t like what someone has to say you just mute them and they go bye bye, you can’t go crying to an admin because you don’t agree with what someone says.