The strangest thing about your list, at least to me, is so much focus on "identity". Firstly, why does this even matter? And additionally, in which way does blockchain demonstrate "identity" any more than a domain name or user account? It demonstrates control over a mechanism, sure, but absolutely not who someone is

For instance, we are all commenting here without "proving" our identity in any way, and it's totally fine. And this is even a far more serious, business-centered discussion context than most of the Internet!