I think we can agree that KYC/AML rules are... somewhat effective, in the face of determination to circumvent. Honestly, to op's point, the IRS audit would be

I think we can agree that KYC/AML rules are... somewhat effective, in the face of determination to circumvent. Honestly, to op's point, the IRS audit would be the likeliest to nail you, post-purchase. "Person without demonstrated income suddenly buys expensive asset" is hard to hide and a huge, trackable signal.