Is no social networking site sacred?

Have you guys heard about this? SpikeTheVote was a kind of pyramid scheme for digg, in which members received credit for digging other sites, and once they have received enough credit, they could submit their own sites to be fake-dugg by other members. [The site was recently sold on eBay, ended up in the hands of digg itself, and was shut down. Or should I say digg shutt itt down.] Wired article: Herding the Mob.

What have we learned from this, aside from a nifty new word, "crowdhacking"? That sometimes harnessing the collective intelligence of users is stupid!