Wow, a trust linking system that doesn't require any personal data, that is freakin' awesome. Kudos to you for thinking of that

It does sound a little daunting at implementation. You mention p2p distribution, which makes it somewhat complex. A centralized, community controlled site would work too, no?
Sorry dude, no way! It must be decentralized. That's the key to keeping the system alive for eternity since it would be an extremely important component to a crypto-anarchist network.