"Trolls aspire to violence, to the level of trouble they can cause in an environment. They want it to kick off. They want to promote antipathetic emotions of disgust and outrage, which morbidly gives them a sense of pleasure. These trolls feed off the reactions of their victims because "their agenda is to take delight in causing trouble..
The noun troll comes from the Old Norse word for a mythological monster. The word evokes the trolls of Scandinavian folklore and children's tales, where they are often creatures bent on mischief and wickedness.