Deleting a comment (mine) shouldn’t count as a comment vote
This is similar, yet different, to this post. That post explains a wrong error text, which seems fixed, but fixed it is with — again — a wrong error text. It is now:
You may only submit a comment vote every five seconds
when you delete two comments within five seconds. While it could be so much clearer with "You may only delete a comment every five seconds", or simply allow it (deleting a comment is unrelated to voting a comment and insensitive to abuse).