A pyramid scheme mastermind has been uncovered, having transformed himself into a traditional Chinese culture guru who “educates” students through corporal punishment.In July, a pre-recorded video by a 16-year-old Chinese girl named Lin went viral among her friends. In the video, Lin pleads for help: “I don’t want to be sent to an internet addiction treatment school or a behaviour boot camp. If you can’t reach me, please call the police and rescue me.”Lin recorded the video just before the summer holiday, stating that her parents planned to send her to a summer camp at the Rushi Academy in Xinchang...