I'd like to support the creation of a rule against upvoting comments. It's kind of like spam tagging: every time you comment, someone can blow over your notifications by upvoting everything you say. I constantly have received up to 21 notifications at a time just made of people upvoting, and all within about a minute. If you want to show that you agree, you can reply to the post including "I agree" or something along those lines. I think upvoting posts is okay, but upvoting comments should go. Anyone agree or disagree?