My honest belief is that they just don't care. In their eyes, a sale is a sale is a sale.
Well, should not the U.S. Secret Service care about such fraud of official U.S. money? Anyone heard about them taking action against what seems common, and perhaps easily traced, illegal activity?
Oh yeah, I forget, the entire fiat fed dollar is now a fraud, so maybe fraud of what is very close to the Constitutional dollar, is actually a good thing (still, not for the U.S. Mint).
“Of all the contrivances for cheating the laboring class of mankind, none has been more effective than that which deludes them with paper money.”Daniel Webster (1782-1852)