> a digital dollar means that you have a dollar where it is impossible to commit crime.

This is overly definitive. For example, in Poland, it's illegal to run a private online poker site and yet there's plenty of operators doing it. They offer digital money transfers via payment processors which specialize in skirting the law, such as Neteller, Payza etc. The Polish state doesn't care enough about its own laws regarding online gambling to clamp down on such practices and so people are happily commiting crimes using the "digital dollar".