The downvote (for me) is too ambiguous. Without a couple words specifically about why, it often (to me) comes off as, "I didn't like what you said, I'm too lazy to reply, so I'll down vote you." It's hard to take DV'ing seriously when there's zero context. How many times have we read a sub-comment similar to, "I'm not sure why you're being downvoted..." Nuff said.

Frankly, I can't be bothered to downvote. I've seen plenty of questionable things, and I just keep scrolling. I'd rather save my energy for upvotes. I'd rather focus on the positive. Let someone else play HN Police if that fulfills some kinky need they have.