The one thing I'd love to see more of would be a throw back to the old systems that allowed only a limited amount of upvoting of comments. As in, you can't just

The one thing I'd love to see more of would be a throw back to the old systems that allowed only a limited amount of upvoting of comments. As in, you can't just go and downvote or upvote as many things as you'd like, but you say, only have 5 per day or something like that. I've seen this done with issue/bug trackers and it worked really well because then people just didn't go willy-nilly upvoting every feature request or bug, it had to be important to them.