"A Virginia Tech graduate student hit save on her overview of the state workers' compensation commission one spring day, but before her professor could take a look at it, someone else began deleting entire sections, calling them trivial and promotional.

"It wasn't a teaching assistant on a power trip it was a Wikipedia editor known only as Mean as custard.

"I had worked on it for almost an entire day, said Amy Pearson, a public administration master's student. It was kind of shocking.

"This school year, dozens of professors from across the country gave students an unexpected assignment: Write Wikipedia entries about public policy issues."

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