[quote=@Vec]
Y'know what. A dislike button would be nice. Let's pray to Godhz for that.
[/quote]

There was an article I read years ago about negativity. Can't remember the specifics but it basically said that for each negative action you need several positive actions to counteract that depressive feeling due to the way that it affects people's brains.

Point being, if you create a feature that uses negativity, it'll create a lot more problems than simply +1 and -1 for likes.