Over the past few hours, my timeline was descended upon by very ugly users who have been spewing profanity and vulgar language.
They obviously have a network and descended en mass.
I just blocked 5 domains and didn't lose a single follower.
Later I'll try to figure out how to remove their posts.
Hopefully I got them all. Apologies if you see something vulgar.
Adding: Blocked three more domains. Didn't lose a single follower.