Deleting a comment (mine) shouldn't count as a comment vote
After I submitted a comment to a question I discovered a couple of other comments had been posted before mine. One of those made much the same point so I deleted my comment and tried to upvote the other. When I tried to upvote I got the message "You can only upvote a comment every 5 seconds" or something to that effect.
I don't think deleting my own comment should trigger the 5-second timer.