Maybe it's not a huge issue, but I feel we need the ability to change our votes. I downvoted someone before I remembered that we're not supposed to do that if we simply disagree with them. I tried to take it back, but couldn't figure out how to. All I would get would be a message saying that I've already voted. For the record, the comment I downvoted is
What happens if someone accidently clicks on a vote or changes their mind? Again, not important in the grand scheme of things. But it's something I'd like to see.