I'm not sure if this is a bug or a feature, but it's kind of obnoxious: Occasionally when editing or creating a list or review, the site will automatically upvote it on your behalf. Most of the time it does so without my knowhow, and I'm fairly certain that I'm not just hitting the upvote button by accident nor do I believe that am I momentarily falling into a self-promoting fugue state. It's happened half a dozen times now, for reviews and lists both.
Even as attention-grabby as I am, I don't think being able to upvote your own stuff is a good idea. It dilutes the whole purpose of the system, for one thing. I'm going to assume it's an unintended side-effect of the new site's way of doing things that will eventually be tweaked, but the fact it does so without your consent seems like a bug.
(Chrome 24, Win 7)