Or if downvoting cost the downvoter one karma point. So they'd have to make the choice between contributing a comment to contest the issue or lazily pushing th

Or if downvoting cost the downvoter one karma point. So they'd have to make the choice between contributing a comment to contest the issue or lazily pushing the down arrow and losing karma. I generally try to upvote only. It really annoys me to see some comment down voted to grey oblivion with no follow-up comments explaining why. Particularly when looking back at older topics; was the post wrong, or just unpopular?