One thing the government AFAIK has not done that might help is to provide guidelines or recommendations for how blockchain users should maintain privacy within

One thing the government AFAIK has not done that might help is to provide guidelines or recommendations for how blockchain users should maintain privacy within legal parameters. Even better would be for them to provide a mixing service that includes whatever they would need to be okay with someone moving funds in a way that is untraceable to everyone except for government. We need to decouple the ideas of privacy from public view vs. complete anonymity to actually make progress on this.