Really interesting article. I think we've only begun to scratch the surface of what's possible with crowdsourcing. To me, the author's failure seems to be a st

Really interesting article. I think we've only begun to scratch the surface of what's possible with crowdsourcing. To me, the author's failure seems to be a straightforward one of design. The system allowed attackers to ruin everyone's work, and to do so in a much shorter time than the positive work took. It seems to me that it should be possible to design a system that doesn't have these properties. (Of course it's probably not trivial to do that without making it harder for honest people to participate. But that's a design challenge, not a fundamental flaw of crowdsourcing.)