Xenforo, and a lot of developers, don't like the "dislike" option because they believe it stifles conversations. There was an attempt to create an add-on that would do what you're suggesting but there was a lack of support resulting in the add-on getting deleted. It would have cost Brett money to add it in here.
Yep does Bama beat us twice again this year? We were playing them every week in November under ASS Clown..... uh I mean Elmer