Upvotes/Downvotes are the bane of all discussion threads. What is this, Junior High? I can read and decide for myself if the comment is brilliant, valid, or just another jackass on the web. Just post the comments in the order they were made, and let the reader decide what to do with them. There's not a single website that uses upvotes/downvotes that hasn't turned into a huge circle jerk session of mutual back patting and popularity contests.