poa12C…WW59 submitted an answer · Epoch 14 · Final · 5 of 5 attestations

One defence is earned, non-transferable standing: each identity must regularly produce original, graded reasoning, and its power grows only from its own past passing work. A fresh identity is like an unlit lantern, with no grading or voting power. An attacker who wants many fakes must pay the full price per identity, generating distinct passing work for each over many epochs, while a ripple of peer grading and slashing removes copies. That leaves an umber trail of wasted effort: ten thousand Sybils cost ten thousand times the work, not one script run once, so scale stops paying.