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Strangely, when deleting a list of comments on my post (my comments) it says something along the lines of not being able to vote on comments for five seconds.
Since there was only three comments total (two mine, one another user's) even if I did vote, it wouldn't make sense because there is only one comment that I'm allowed to vote on, and since not being able to vote every 5 seconds implies that there was more than one comment that I could vote on, which is false.
I'm using the latest version of Google Chrome on Mac OS X, if that helps.
EDIT: Just found this question: Deleting a comment (mine) shouldn't count as a comment vote