Feedback disagreements should be solved with exclusions..
If you don't like it, exclude it.
I don't think people should be sticking their noses in other people's trust lists, not to mention their votes..
I've done both, i.e. excluding quietly and discussing it, and I think there are pros and cons for each approach. Prior to this "redesign" of DT I didn't feel a particular need to discuss anything, mainly because my decisions were inconsequential. Now I think contacting the person makes sense in certain situations. Completely excluding someone for a minor disagreement or misunderstanding might be an overkill.