I've been trying to manifest Web of Trust coming back to help people navigate towards content that's created by humans.
A system where I can mark other people as trusted and see who they trust, so when I navigate to a web page or in this case, a Github pull request, my WoT would tell me if this is a trusted person according to my network.
Unfortunately trust isn't transitive.
You need a very complex weighing and revocation mechanism because once one bad player is in your web of trust they can become a node along which both other bad players and good players alike can join.