Some people confuse upvotes/downvotes with speech

Some people confuse posting with speech. Communication consists of sending and receiving. Writing and reading. If I can post but it's hidden and unreasonable difficult to find — that's called shadow banning. Social media sites who shadow ban are not free speech sites.

Anyone with keys can broadcast messages

Sure about that? It's my understanding that if your name is in 0_22.hf you can't broadcast messages any more.

After the fork I was very stroked for Hive and had high hopes until I found 0_22.hf on GitHub.

Note that line 20 to 52 of 0_22.hf I can understand as protection from Justin Sun. But line 54 to 353 not so much. Those 300 user handles should not have been there. That's the founding witnesses taking out some petty revenge.