Does ActivityPub send those to other instances, or does ActivityPub only send the original post and the rest (upvotes, downvotes, replies) are stored only on the original server where the post was made?
Does ActivityPub send those to other instances, or does ActivityPub only send the original post and the rest (upvotes, downvotes, replies) are stored only on the original server where the post was made?
A whitelist defeats the decentralisation and openness of a defederated system.
I think you're mistaken in your assumption it would be easy to identify malicious instances. Bots are notoriously difficult to fight, every time you block one method another workaround will appear.
I run a large instance and I look around in the DB occasionally when users complain, so I'm pretty familiar with what's in there.
True, but assholes are assholes and sometimes freedom and assholery don't mix well.