It's an interesting idea, but how would a user make that decision on who to trust? As in, what 'things' could we look at to make that call?
Personnaly, I think this is completely broken and even dangerous as it induce in normal people some kind of third-party trust which is worth nothing in reality.
In the end people are tricked in believing that information system security is really a thing and very strong/solid, which is, as we all know here, a fantasy, it does not exist. It is even worse when you have some 'people' pretending to sell 'deliverable security'.