Since the tag-pouncer ceased policing butts on #Asstodon, I've seen I think two butts. In over two months. They were appropriately CW'ed. Very, very easy to ignore or even filter if you want (filtering out NSFW will catch most of it). It's still well north of 90% donkeys.
(Looking now, only seeing one since late July, but federation is weird, YMMV.)