How to remove sidebar sections from a magazine I moderate? (solved)

I moderate the men magazine, and we get spammed with gay porn in the sidebar, which is often not labeled as NSFW. (I have nothing against gays or porn, but it is not appropriate for a serious discussion community.) I have tried to hide those sections thru the magazine CSS, but it does not seem to work.

Any help here? Or is this not possible at the magazine level?