Only if you treat downvotes as bad. My own comments on this thread have received a fair number of both upvotes and downvotes. I consider when that happens (assuming I haven't been overly antagonistic, which I don't think I have been) that I've hit a raw nerve. I could be wrong, but alternatively I could've said something someone isn't willing to hear. That can be useful feedback in its own right (though I prefer the clarity of comments over votes).