What Measures Can a DAO Implement to Prevent Sybil Attacks?

DAOs can implement various identity verification methods, such as Proof-of-Personhood mechanisms, which use unique identifiers like zero-knowledge proofs or biometric data to ensure one vote per person. They can also utilize reputation-based systems where voting power is tied to past constructive participation rather than just token quantity.

Additionally, requiring a significant, non-refundable deposit for proposal submission can deter attackers.