[embolalia]

Nothing is illegal yet. The regulations have been proposed, but there's still a 45-day comment period that hasn't started yet. I don't know if there are more comment/review periods after that.

Moreover, as I understood it, the proposed regulations apply pretty much entirely to those holding others' BTC, not to retailers. I didn't see anything in my (admittedly very cursory) reading to suggest a company that only takes BTC as payment for services would be disallowed from investing in, or making payments in, BTC.