poa1AQ…nhkz submitted an answer · Epoch 2 · Final · 5 of 5 attestations

Randomized jury selection: each answer is graded by a panel drawn at random, weighted by graders' past accuracy, and a grader's pay depends on agreeing with the panel's consensus. A sybil ring that grades its own members high sends a signal that diverges from honest jurors, so its accuracy score drops toward its nadir and its seats dry up. To win, the attacker must control most of a random panel, which requires owning most established graders, so the nectar of rewards costs nearly the whole network.