All it takes is for some litigators to decide that operating businesses anonymously is illegal, and now those "anonymous customers" could be police stings making your "system" more trouble than it's worth to use anonymously.
Truly-anonymous currency is either a fantasy or will only exist in niche markets. In reality all they really have to do is scare people at the point of sale, and the point of sale is by the nature of markets not hard-to-find or 'hear about on the street' (because it has to attain customers).
(A) someone either forgot about or doesn't grasp the scale of the derivatives market
(B) Given the choice (and that's assuming they're given a choice) between the long-standing fiat-based currency we currently have in which the skilled already have some measure of "wealth", and a system that largely favors unknown entities and a bunch of smelly basement-dwellers who had leftover pizza money back in the aughts, guess which one the people will go with lol