I hope they can figure out a way to solve this sort of thing going forward. And I'm curious if their choice of either digg/bury instead of upvote/downvote makes it easier to game. I believe it does, as these folks haven't been able to do the same with reddit. I'm not sure, but I believe a story is gone once it gets a certain number of "buries" whereas on reddit a story with a lot of downvotes can be easily resurrected by upvotes. (though I could be wrong about this?)