So I found this article, I don't have the link about people getting free airline miles from their credit card company. The basic idea is you go to the US mint website and order 1000 dollars worth of dollar coins, use your credit card, they ship them free to you in about 2 weeks, when the coins come you deposit them into your bank account and then pay the bill before you are charged interest. So what do you think unethical? it is not illegal, but would you consider it unethical?