I can't say that I don't do that as well, but for other reasons. But when it comes to engaging them in a discussion or answering questions such users might have, I don't really pay that much attention to their trust score. Positive or negative, they can still have a valid point and know what they are talking about. Someone brought up Quickseller, and that's a good example. You can talk with the guy, but it doesn't mean you need to trade with him or do any business together if you don't trust him.

One of the exceptions of their campaign is that they don't accept users who are negatively tagged, but they do accept those who got tagged just for wearing their signature.