This may be a really dumb idea, but since the data is already publicly available and easily viewable on kbin what about going a step further and require or at least make it possible to attach reason to the upvote/downvote? A lot of the times people don't have the same standard and common understanding of why other people up/downvote. This could perhaps keep it more civil and make the votes more meaningful. It could possibly discourage people from mass downvoting spree or discourage trolls.