The interesting question is whether BadBear has information at all or just followed the rating by someone else.
BB has a lot at stake with his reputation here, as I do. I don't think he would "follow" anyone else's rating.
I, however, have enough trust in him to follow his ratings.
I personally also have no problem in trusting Quicksellers (or BB's) judgement either. Im certain neither of them, nor you, are leaving negative ratings lightheartedly or at a whim. Disclosure is still important to maintain the integrity of the rating system or rather of the default trust list as a tool.