Every Nostr relay has to censor stuff or it risks getting shut down . Copyright images, pron, all sorts has to be censored. Abuse etc. Much will be subjective stuff open to lawsuits people won't want to fight. In the end I suspect Nostr will be little different to twitter to the end user outcome, because every relay owner is accountable for what is on their relay. Just as Musk is, both within the law but also within the threat of public scrutiny and endless lawsuits.