Vitalik Buterin warns of risks to pseudonymity and potential coercion with digital IDs using zero-knowledge proofs (ZK).
He criticizes the 'one ID per person' model for compromising pseudonymity and enabling pressure to disclose private keys.
Buterin proposes a solution based on identity from social graphs and decentralized sources for a balance between privacy and scalability.
He suggests a pluralistic identity model where obtaining multiple IDs grows quadratically in cost, providing scalability, pseudonymity, and resilience.