Trolls, we deal with them constantly on YT (Well, some of us do). Vile, profane, and just plain nasty, some of these trolls are so hate-filled it's almost hard to fathom. Well, a new study says that these trolls are psychopathic, sadistic, narcissists. SURPRISED?? I'm not. For the record, these are not your run of the mill folks with a differing opinion than yours, there's a difference. Check this out!