I would start by targeting under served merchants that currently don't offer the credit card option like vending, laundromats, etc. I could also see this worki

I would start by targeting under served merchants that currently don't offer the credit card option like vending, laundromats, etc. I could also see this working to give websites another way to monetize ad blocked sites with micropayments(i.e wired throws the hey stop using adblock banner or click this qrcode and give us $.25) Another benefit to the customer would be privacy since the merchant would never see their personal info this could fuel adoption,