Reusable KYC: when a dedication to decentralization self-sabotages

Reusable KYC, where verified identity credentials can be shared and reused, is presented as a pollutant at the system level, though it may suit tightly constrained contexts such as anti-money laundering and investor accreditation. Each individual use, such as a verifier requesting credentials, seems harmless alone, but without ongoing governance it becomes a systemic harm, and responsibility lies with system architects. Legal identity is described as only one context-bound aspect of a person, so reusable KYC should be avoided for Sybil resistance except in a few cases, such as wealth distribution and democratic process.