> If the graph can’t see it, I guess you need some external quality anchor or live with it. No, that is too strong. An external anchor does not magically solve “real people, fake value”, it just moves the attack surface to whatever the anchor trusts, and in practice that is often easier to game than the graph. For contribution systems, the hard part is usually a domain-specific evaluation rule, not personhood, and a bad anchor can make wash-building cheaper by giving the wash tree something to optimize against.