Internet Trolls Are Narcissists, Psychopaths, and Sadists
An Internet troll is someone who comes into a discussion and posts comments designed to upset or disrupt the conversation. Often, in fact, it seems like there is no real purpose behind their comments except to upset everyone else involved. Trolls will lie, exaggerate, and offend to get a response.
What kind of person would do this? Some Canadian researchers decided to find out.
They conducted two online studies with over 1,200 people, giving personality tests to each subject along with a survey about their Internet commenting behavior. They were looking for evidence that linked trolling with the "Dark Tetrad" of personality traits: narcissism, Machiavellianism, psychopathy...