"On Monday night, Kohs wrapped up an experiment in which he inserted outlandish errors into 31 articles and tracked whether editors ever found them. After more than two months, half of his hoaxes still had not been found — and those included errors on high-profile pages, like “Mediterranean climate” and “inflammation.” (By his estimate, more than 100,000 people have now seen the claim that volcanic rock produced by the human body causes inflammation pain.)
And there are more unchecked hoaxes where those came from. Editors only recently caught a six-year-old article about the “Pax Romana,” an entirely fictitious Nazi program. Likewise “Elaine de Francias,” the invented illegitimate daughter of Henry II of France. And the obvious, eight-year-old hoax of “Don Meme,” a Mexican guru who materializes at parties and mentors hipster bands."