Recalling the history of YikYak and it's problem in dealing with anonymity reminded me of this video: http://www.gdcvault.com/play/1024060/Still-Logged-In-What-AR

YikYak's struggle reflects a decade's worth internet troll evolution between Facebook and YikYak. At Harvard there was no iPhone, no precedents from Twitter, no standard arsenal trouble-making tools in the hands of college students.