According to Tom Postmes, a professor of social and organisational psychology at the universities of Exeter and Groningen, Netherlands, and the author of
Individuality and the Group, who has studied online behavior for 20 years, "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."
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