So, as I started out with saying, it might be a difficult thing to do depending on how far to take anonymization.
(where “can’t” translates into “other things were higher priority”, like anonymity etc.)
And also, from that first post (which David has already gone into details with above):
This summarises the reasons to want that:
Was not a suggestion for it to be done, just described the first idea that came across for how it could be done.
I have no opinion on what the market should be seeing. But what you are talking about above are three different things; supply, velocity and GDP.
The supply of tokens within the DBCs will be real. It’s not a myth.
Depending on the velocity, you might get a GDP of "50, 60, 70 whatever bn", but that is not the supply.