Robert Graham (ErrataRob) pointed out some problems with this study: <a href="http://blog.erratasec.com/2014/02/that-trollers-are-sadists-story-is-bogus.html" rel="nofollow">http://blog.erratasec.com/2014/02/that-trollers-are-sadists-...</a>
> Science confirms: Internet trolls are terrible people<p>Wait, what? "Science confirms"? Mainstream psychology isn't scientific, and this is social psychology, which doesn't even make good fiction.<p>As usual in psychology articles, even the title contradicts itself -- science doesn't confirm (prove) anything, it can only support theories with evidence, while disproving a few theories along the way.<p>More here: <a href="http://arachnoid.com/building_science" rel="nofollow">http://arachnoid.com/building_science</a>
> Trolls turn out to be extroverts -- but extroverts with "disagreeable" personality traits.<p>I seriously doubt that extroverts waste their time trolling others online. They probably have much better things to do in real life.