Seriously any centralised social network hosted in the USA, Russia, China, Australia (to name but a few) is fully traceable, can easily be censored, and can be held legally accountable.
No so easy with peer-to-peer networks or decentralised networks hosted across numerous countries. It's not impossible, but seriously centralised network = no privacy.
See Parler explains 'free speech' to angry users after sharing Capitol riot posts with the FBI
Parler is now trying to explain the First Amendment to its conservative users.