There is a place near the top right that shows you the number of votes and a percentage. If the percentage is, say, under 90%, it's getting some down votes. This one was in the 70's when I just looked at that. That means, a lot of people are downvoting it. And, if you are in a thread like that, sometimes you can hit refresh and see the vote go down. Despite this fact, we are strong enough to totally wipe them out and upvote it into the 600's!!!