I was on Beehaw and they block downvotes. I didn’t think much of it until I went to a federated channel with low participation (it was a new channel) and I wanted to downvote some bot-spam… but couldn’t cause Beehaw didn’t allow it.
I understand (but don’t agree with) the site operators intention, but their rational breaks down if you view the fediverse as something more than the single instance you’re registered with.