"The term censorship refers to the suppression, banning, or deletion of speech, writing, or images that are considered to be indecent, obscene, or otherwise objectionable."
https://legaldictionary.net/censorship/
So where does hive do that? Votes do not suppress, ban or delete anything from hive. Everything is equally reachable from api nodes if they're configured to deliver it. Some do use blacklists for legal reasons, but not based on votes.
Frontends may choose to handle the content differently, but that's not hive.