Blocking works really well cause there’s so few of them. I’ve only blocked a single one (months ago) and haven’t had any bot spam of the level of disliked. I still do see some from humans, but most of the time that’s people trying to populate a smaller community where they’re basically the only poster so far. There isn’t really any other good options to jump start most communities, since people tend to not post (or even know about) new communities until they’re active.