Can you point me to a document that prohibits posting certain types of content? Where are the rules written and what does "frowned upon" even mean? Is it voted on by the community or not?

I thought I can post anything I want on a decentralized platform and then those reading what I posted will determine if it is worth an upvote or not?

Which proposal specifically gave you the authority to be the police on Hive and determine which account gets to be blacklisted?

Thanks