Negative Feedback Removal/Turnover...

Undeserved negative feedback sucks and sometimes it's really obvious that it was left as sour grapes or its just a plain idiot leaving feedback. I think it would be a great idea if there was a system of reviewing negative feedback, either if it was by a special request committee or by a certain number of people voting that its uncalled for when they read your feedback. I'm just sayin, if we can't remove idiots from the site, can't we just at least remove their impact?