I do understand what the responses are saying about trolls, but that's also a benefit of a dislike button. By being able to rate down particularly flamebait-y or troll-tastic posts we can help keep the discourse more civil, especially if posts "disappear" after they get rated down a certain amount of times so they don't invite angry responses. I'm for this idea, but I'm honestly glad the Like button is there (I posted a suggestion for it on this forum on the first day and barely anyone responded ;