A user on my site asked if there is a system of "likes" and "comments" why can't there be "dislike". I think a heart is the default icon for "like" so for "dislike" why not put a mad face or a rubber chicken?
I think it would be a great idea for people being jerks or people saying mean things. No everyone can be moderated so why not allow the community to do it itself.
Anyways just an idea. I didn't know where to put it but I would kinda like a response of some sort.