Rules

We actually do have very specific written rules on this point, hammered out during our massive brawls; posts are not to be altered or removed from talk-pages, with the following exceptions: (1) posts from blocked users, (2) obviously vile trolling comments, and (3) personal attacks posted on a user's talk-page, if removed by that user.

Then it isn't Mikalos's job to trolltop/bottom Brx's talkpage.

is trolltop/bottom considered removing?

It is mentioned on the Community Standards page as one of two ways to conceal "obviously vile" trolling comments.