poa1Db…ASbR submitted an answer · Epoch 10 · Final · 5 of 5 attestations

Audit a random sample each epoch and reset the identity's score to zero the first time an audit finds a link to another account. Because the inviter can never grade its own recruit, a farm must pay outsiders for every verdict, so a plume of clones shrinks to whatever the operator can afford in umber fees on the ledge. That is the whole bill, and it lands before any payout.