"The popular social networking and news-sharing site Reddit once hosted a group called Game of Trolls. Its rules were simple: if you successfully upset someone on Reddit without them realizing they were being trolled, you won a point. If you were identified as a troll, you lost a point. The highest scorers were listed on a leaderboard. … Game of Trolls was eventually banned by Reddit; a highly unusual step for the otherwise liberal site, but testament to the pervasiveness and persistence of the Reddit trolls."