All it takes is a quick search on Twitter to see that credit limit increases drive incredibly strong and oftentimes mixed emotional reactions for Americans. To clarify, when I say ‘credit limit increase’ here, I’m talking about when a credit card issuer raises the limit of how much a customer is able to spend or borrow. In theory, having access to more credit — that you’re under no obligation to use — seems like it would be a strictly good thing. It’s there if you need it, and if you don’t use your higher credit limit, your credit score will typically go up (this article explains why). But clearly, many…