Have you seen the New York Times article on CS cheating at Stanford? Here it is.
I wonder if SO should have copy-and-paste traps like the kind used on New York magazine's site. When a user copies text from a site with a trap, the text will paste with a note explaining where it comes from. E.g.:
Albany needs a new novelist. William Kennedy's books are brilliant, but his ghosts and gangsters roam a state capitol that's been gone at least six decades. Capturing the surdity that has reigned since Eliot Spitzer arrived as governor, and that reached new nonsensical heights this week, calls for a Hudson Valley version of Carl Hiaasen.
Read more: Chris Smith: What We’ve Learned From the Paterson Circus — Daily Intel
This would only foil the most bumbling cheaters, but it would be interesting to see how often the little tag would show up.