Maya Gilsey, the college student hounded by an angry mob on link-sharing site Reddit who thought she was a scammer, shaved her head yesterday to raise money for kids' cancer treatment. She raised $9,000, and Reddit helped.

A member of link-sharing site Reddit thought he caught a scammer red-handed. He spearheaded a crusade against her, harnessing the power of one of the web's biggest hiveminds to shut her down. He was wrong. She was fundraising for cancer.