With my largest website I got perma IP banned for promoting my website of a game making program on the game making programs official forums. There, at the time wasn't any rules against it. But, that promotion apparently is what got the site pretty big decently fast. In them shutting it down instantly, made people infinitely more interested in it and had them joining left and right. It had almost 1k members in the first week. So yes, I did get banned for 'wrongfully' promoting, however it wasn't me breaking any rules as I always read the ToS before making any promotion posts to avoid situations like that, which still happened XD