Some people will mod down those they disagree with, marking the post as Troll or Over Rated just because they disagree--without regard for the quality of the post.
THIS IS WRONG!
Consider the post by tomstdenis at http://yro.slashdot.org/comments.pl?sid=346867&threshold=-1&commentsort=0&mode=flat&cid=21195239
Tomstdenis is my foe, but I moderated that comment as Insightful. Some others caled that Over Rated, and some IDIOTS called it a Troll.
Come on people! Get some integrity!