Who is this Dan Larimer you talked about? 😝
DID is REALLY hard to work out.
In fact, it seems like it can't be completely decentralized.
Like real life friendship making, you need to be introduced through people you trust, to new people. Else, you have a very bothersome ratchet-step teeter-totter in building a relationship.
So, really you need a "group" mechanism. Like a personal "Wall Server" (inside out F-c-book) and on that server is your friends, and the rating you give those friends. And so, to find, and verify a new person (username, ID) you query many "groups" and maybe have your "Wall Server" watch them and report Bot like activities, or bullying, or what you have.
I do not like DID on bitcoin, because we do not have 8 billion inexpensive spaces. So, it will become DID for the rich, if Michael Saylor works it out. And godz i hope he does.
There is something like this on ETH, but for e-mail and URLs