It wasn't me (not registered, so can't up- or downvote), but I'm sure the explanation is something like "You're wrong!", "I disagree!", or "You piss me off!" My last two downvotes included explanations. One was a simple "You're wrong", but the other was "You didn't address the question". For the first, there was a link to a Web page that was, IMHO, inappropriate for the point, but for the second, there was a good explanation and the downvoter was correct -- about that, at least. My mistake in the second case. It's nice to know why one gets downvoted: constructive criticism can help. —
Huizhe Sep 5 at 12:39