https://www.techdirt.com/articles/20210224/15064246314/content-moderation-case-study-chatroulette-leverages-new-ai-to-combat-unwanted-nudity-2020.shtml

Summary: Chatroulette rose to fame shortly after its creation in late 2009. The platform offered a new take on video chat, pairing users with other random users with each spin of the virtual wheel.

The novelty of the experience soon wore off when it became apparent Chatroulette was host to a large assortment of pranksters and exhibitionists. Users hoping to luck into some scintillating video chat were instead greeted with exposed penises and other body parts. (But mostly penises.)