I've seen their "fite me bro" style comments and a bit of sussy posts, but I'm otherwise unfamiliar with the deep lore. I agree with Ada's proposed solution and perhaps in a week their community will have made changes to this behavior.
After spending some time in their threads, hexbear seems pretty drama-pilled. I think saying we can individually block them is cope, they will just bother anybody who doesn't know about this drama and to block them until the end of time.
Their newsposting and news takes are really good, though.