If you have valid card info and a cardholder attempting to buy something in real-time, why not just proxy their card details and any verification (3D-Secure, et

If you have valid card info and a cardholder attempting to buy something in real-time, why not just proxy their card details and any verification (3D-Secure, etc) directly to a gift card/cryptocurrency exchange/etc? I'm sure it'll net way more than selling the card details as it effectively bypasses the 3D-Secure step which typically protects against card-not-present fraud.