No votes for anything after Physical Graffiti - aren't we all very sensible and tasteful?

I wanna change my vote, but it won't let me. Bad usability.

John, I'm not sure if it's really a usability issue. Frequently researchers don't want to allow you to change your answer, because they want the first answer that comes to your mind. However, if you meant to vote Gore and accidentally voted Buchanan, I think they'd say, yes, there's a usability issue.