Why this hasn’t been done is pretty baffling to me.
Because the blockchain needs an incentive. Who is going to be taking part in the blockchain if there is nothing in it for them? That’s why these tokens are often tied to crypto currencies, as mining is the incentive.
Email standard sucks anyway. By the official standard, [email protected] and [email protected] should be treated as separate users…
But you don’t believe in anything? Not all beliefs are supernatural. There is no objective fact of what is morally right or wrong for example, there is no science behind those concepts, yet you probably still have some beliefs on what you perceive is morally right and what isn’t. Or if you do not, you are a sociopath.
I know of one use case that seems viable, there is a digital housing market service in my country (called Dias). It uses blockchain to verify transactions related to selling and buying houses. That includes proof of sales, ownership, bank transaction status etc. The blockchain is operated by all the major banks. Their incentive is that it increases the security of the transactions thanks to the immutable digital trail, and also the fact that no single entity owns the “database” so no entity can alter it, or skim service fees etc from the others.