Interesting, but unsurprising. The more interesting aspect is that unlike tangible property, bank accounts or stock transactions that can be audited, this seems practically unenforceable on the IRS's part.
Exactly. They write: > “The danger is the creation of an electronic black market, similar to the cash economy,” But how can they avoid it if Bitcoin does work like cash in many aspects and they have no control over it?
It will be (almost entirely) up to trust in the long run.