This is why I want a block. Mute is all well and good for hiding them from ME... but it doesn't stop them from posting comments on my posts, it just hides them from me so I don't know it happened. I prefer to block them (trolls/spammers) from using my posts as a vehicle to push their own agendas. And downvote/flag isn't really the solution unless you're ready to sing tens of thousands of dollars into the platform to be of "worth" enough that your downvote actually impacts them.