After a deluge of joke comments on his Facebook wall last week, Sam Brownback's staff seems to have given up on allowing outside posts at all. His page is now on Timeline and all the posts are from Brownback himself.
Update 4:01 p.m.: Brownback spammers have been emailing to say that their comments are in fact still there -- but the Timeline makes it so you can't see them. They're hidden in the "Posts by others" section.