Remember that very few people will post anything - comments, pics, whatever - that they know up front are going to be unpopular. Its human nature. In otherwords, no one posts thinking "yeah, i can't wait to see that thumbs down or one star rating!". So thats why I am in favor of giving everyone the benefit of the doubt, and going easy on tools that allow one to negatively rate posts. They're too ripe for abuse, and pretty soon things could degenerate into ugly arguments and wars. Plus which, they can have an inhibitory effect on the posting of non-mainstream type material, some of which can be very interesting but not for everyone.
If a particular poster rubs you the wrong way and does it repeatedly and the mods don't seem to take notice - you can always pm him
Maybe he wasn't even aware he was doing anything unpopular.
Klondike