I'm familiar with the concept of manufactured spend, and why credit card companies would try to clamp down on it. What I don't get is why the US Mint would care one way or the other for the concerns of credit card companies. The usual way to eliminate manufactured spend would be to add a credit card specific transaction fee that cancels out the spend points. By the Mint increasing the base price for everybody, this affects even people who might be paying with a debit card, or an ACH transaction (not sure if they're options, just positing).