Teenage Subway Aficionados Help With the Upkeep of Every One of New York City's 472 Subway Stations -- At Least on Wikipedia

The New York Times has a feature story about two incredible teenagers who work behind the scenes to improve all of the Wikipedia articles about the New York Subway system. An excerpt: Ryan Ng is a 19-year-old freshman at Baruch College in Manhattan. He studies finance, lives at home with his parents in Queens and is a member of the college's "League of Legends" video game club. But in the somewhat fanatical world of Wikipedia supercontributors, he is best known by his alias, Epicgenius. As Epicgenius, Mr. Ng has made over 180,000 edits to Wikipedia and created more than 17,000 pages for the site. Most of his work is in the service of his particular fixation: updating the articles associated with all 472 stations of the New York Subway system. "Sometimes I edit before I do homework, which is not a good thing," Mr. Ng said. But he finds his hobby satisfying. "When I improve an article, I feel like I've accomplished something. I see my editing as more of a mission." Mr. Ng discovered Wikipedia editing when he was 13. He recalled wanting to collaborate on the page for "Gangnam Style," the hugely popular 2012 hit by the South Korean performer Psy. Shortly thereafter, Mr. Ng decided to specialize in public transit, which he considered a somewhat more useful pursuit. He knows his hobby can become obsessive because it's happened before.