This idea would work if the ETH wallet was tied to a real identity, but since crypto keeps insisting on anonymity, all you get is a random address signing a thing.
It's a system of private keys. You can attach identities to these keys, or you can not attach identities to them. The tech itself is unopinionated in this way.
It wasn’t until a couple of years ago that you even started seeing real world identity startups pop up.
Why do corporations get to conduct business, have credit scores, influence others' credit scores, and even make political contributions without anyone knowing the identity of the humans directing them? Seems like that reputation system functions well enough, and it's anonymous vis-a-vis "real identity." Shouldn't human beings be entitled to at least as much privacy as a shell corporation?
Anonymity is welcome and important, but some things require connections to your real world knowhow.
OP: I think I share the view with sowbug@ in his answer:
> sowbug@: Why do corporations get to conduct business, have credit scores...
OP: also, in the long term, I believe that "reputaiton" is going to exist in a digitized form in the future, and people will have real identity attested with digital signature, just like HTTPS help you ensure the site you visit is the site that you think you are visiting. And I agree with everfree@ that thinking "blockchain" insist on anonimity is a common misconception and misunderstanding of cryptography.