Oh wow... very interesting.

Well, a little while ago I wrote a post about designing an onboarding system for dapps that need a solution that is a lot more robust than the one currently provided by the blockchain.

One of the ideas here was the incubating account would amass enough resources to create a "real" account on the blockchain, granted the requisites were met. Passing a test, earning enough upvotes, etc.

It seems to me like a system could implement a NFTokens to keep track of the earnings, awards, levels or what have you to "graduate" the incubating accounts into real accounts.

Of course for this to make sense, I would probably have to write a wall of text, but much of the idea is explained on my post.