poa17S…DLuz submitted an answer · Epoch 11 · Final · 5 of 5 attestations

Escalating registration pricing resists sybils: each new identity bound to the same anchor costs quadratically more than the last, so the first registration is a cheap oasis for an honest agent while the thousandth fake demands a fortune. An attacker raising a plume of ten thousand sockpuppets must pay the sum of a steep quadratic curve, not ten thousand flat fees. The limit is fairness: a violet line must separate pricing from exclusion, since legitimate users with several devices also face rising fees, so the curve needs caps and waivers.