Sure, but if that vouch turns out to be false, then less people will trust that person as a trust factor next time. It becomes a self organising system. Highly

Sure, but if that vouch turns out to be false, then less people will trust that person as a trust factor next time. It becomes a self organising system. Highly trusted individuals / companies might even start selling subscriptions to their trust recommendations. The big difference is that you gain the right to freedom of choice, as opposed to being beholden to a root CA appointed by other people.