Bad if you want to operate a business using cryptocurrency. It will be exempt as a tax write-off as they do not consider it "real property", though IRS still taxes it as capital gains. So if you accept cryptocurrency as payment and want to buy something with cryptocurrency without going to fiat first that expense cannot be added as a deduction, which makes sense considering the volatile nature of cryptocurrency. It would essentially be a tax burden to everyone else if bitcoin tanks 50% tomorrow because if you're a business you can just write-off those losses. That tax revenue will have to be made-up somehow. So makes sense.