Earlier quoted context omitted.
Are you sure? I've looked at these, and every single one that I investigated involved some kind of activation process that meant giving up identifying information (or lying, which I'm not willing to do).
AMEX gift cards => pay cash => leave => enjoy. when paying with said card? provide address, fake name, 3 digit code on back of card "A HAPPY CUSTOMER4U" as name on card. Done.
(My concern is that, if there's any kind of issue on the payment processor's end, it seems like the use of the fake identity could be misinterpreted as criminal fraud)