How so? buying with intent to cash it elsewhere is just as against chases intention even though it is not explicitly in the T&Cs
Maintaining a credit card and making purchases with the sole intention of generating points is explicitly prohibited in the T&C's. However, it's not stealing. What's the difference to them if you buy a gc as a gift or to cash out? (Although it can be argued that chase is losing 2% on their 5% categories, which they are willing to sacrifice for the purpose of enticing you to have the card and make other purchases on it, which they are making 2% on. Using it solely for staples can therefore be argued to be the equivalent of making purchases and returning them.)