Quote Originally Posted by rvg View Post
That's because it was just him. Add a million more and the system becomes useless.
But for that to work, everyone would need to be confident that everyone else is doing it. Otherwise, many would be less willing to stick their neck out for fear that others wouldn't and only the brave idiots get in trouble. Not quite prisoners dilemma but stag hunt where free riding doesn't really offer much of an advantage but confidence is still needed for everyone to get on board.

http://en.wikipedia.org/wiki/Stag_hunt