I found the ads cluttered up the view in "new posts". I took them out. But as I don't use the sidebar either, the only way to access the classifieds forums would be to search for it, I guess. Couldn't it be done in such a way that the ads doesn't show up in the "new post" list but the classifieds forums show when I click the top "Forums" tab?

Yes, I like having the cake and eating it, too...