The current arrangement has been torpedoed a long time ago already, with the Patriot Act (2001) (though it took many years to understand the extent of it).
No, I want to insist on Bitcoin's intellectual legacy. Before ~2011, only a handful of niche nerds at the intersection of cryptography and (goldbug) economics had heard of related ideas. After ~2011, everybody had, and started building their own (like Etherium).
Yeah, it's uncommon, but bank wire does exist, and while (like cheques) it's typically used for paying rent / utilities / sending money to non-businesses, it does seem to become more common since it was improved to be 'instant' ?
"Break the law" is too weak of a term since it includes routing around the monetary systems overseen by incompetent / corrupt / totalitarian governments.
One issue here is that one, very important for the future of Valve, type of target customer here is first time Steam users : teens without a console nor a (gaming) PC. April 2026 is already going to be a problem for them.
(Though I guess someone in their family can enter the lottery for them.)
Giving a list price would make no sense in the case of an auction, in fact would be misleading, (maybe even illegal ??), and not just because of these issues.
Most people would bid the maximum that they can justify. That's like saying that only scalpers take part in auctions (easy counter example : eBay).