Experts criticize Koko, a mental health nonprofit, for directing some at-risk users on Facebook, Tumblr, Discord, and other platforms to a chatbot for a study (Chloe Xiang/VICE)

Chloe Xiang / VICE:
Experts criticize Koko, a mental health nonprofit, for directing some at-risk users on Facebook, Tumblr, Discord, and other platforms to a chatbot for a study  —  Koko, a mental health nonprofit, found at-risk teens on platforms like Facebook and Tumblr, then tested an unproven intervention on them without obtaining informed consent.