Off topic: I would be curious to get statistics about the evolution of the ratio of downvotes/upvotes the past few years on HN. I also have the sentiment that H

Off topic: I would be curious to get statistics about the evolution of the ratio of downvotes/upvotes the past few years on HN. I also have the sentiment that HNers have been very "downvote-happy" lately, as you put it. I really think downvotes should be rationed in some way (and not just enabled after some karma threshold is reached).