What’s the point of kyc-free purchases if you don’t know where your sats come from? What if they come from a KYC purchase. Wouldn’t chainalysis easily identify where they went? 

And if gained illegally, that’s just traced to the buyer, no? 

Mr. Govt can say the seller’s sats should be blacklisted and as a buyer you’re sort of screwed regardless if they know your identity or not unless you coinjoin?