right now, upvote and downvote are used as agree/disagree counters, but also as relevant/irrelevant counters. I believe that we should separate those two functionalities. Right now, an interesting stance/argument will only get upvoted (so more visible) if it follows the general consensus of this site, and I'm scared that we'll turn into an echo chamber.
I think it would be good to add one or two counters that measure the reception of a comment, which does not alter the place of the comment in the thread. If someone comments something unpopular but still interesting, they can get visibility while raddlers can still express their agreement/disagreement.
Ideally, those "useless" counters would be forum-specific, and there could be multiple ones: for example, on one forum there could be a counter for agreements and another one for disagreements, while on another forum there would be a unique average agreement/disagreement counter. /f/memer could also have a "dank" counter too for example.