Making and distributing your own private currency in the US with a dollar sign, the dollar word and the words "Trust in God" was clearly construed to be a federal crime. Let's be honest here - that sort of action would be criminal in any nation.

Does China have a law that prevents contenders from challenging Tai-Chi masters ?

It is not clear what federal laws are broken specifically by using words "Dollar" and "Trust in God".

The point I was making is that Tai-Chi became part of mythology created by CPC that is bonding the society. Slightest challenge is not tolerated. Same with Liberty Dollars - these coupons do not violate any laws, but challenge the state's monopoly on money creation.

Does not apply. The example amplifies the original charge.