Matze hired Hive, an AI-based content moderation company that does work for Reddit and Chatroulette, on Jan. 18. Hive, based in San Francisco, employs more than 2.5 million contractors who are paid per task, often in bitcoin, and annotate images, video, text and audio content collected from the Web. That feeds into Hive’s machine learning and algorithms, allowing it to better police content.