It's pretty obvious when someone upvotes your question or answer they like it and the physics is reasonable or correct - but when someone downvotes its often ambiguous if they have a legitimate concern about the physics, or perhaps you just didn't answer their original question.
Is there anyway we could requite someone to write a short explanation if they downvote? Perhaps anonymously if they wish?
For example sometimes if you are getting upvotes and downvotes on a single answer, its very unclear what the real response it got from the community - do people like it overall and there are a few other un-informed downvoters? Or visa-versa ?
A huge part of physics (and science, art in general) is getting feedback and I for one would like to see something like this in place, or try something like it.