There are three things you should know about the game, for the purpose of understanding this study: (1) players are anonymous, and the possibility of "policing individual behavior is almost impossible"; (2) they only encounter each other a few times in passing — it's very possible to hurl an expletive at another player, and never "see" him or her again; and (3) finally, and perhaps predictably, the sex-ratio of players is biased pretty heavily toward men. (A 2014 survey of gender ratios on Reddit found that r/halo was over 95 percent male.)