Someone above said the actual loophole is not important for a discussion. I do not agree at all. Is taking a connecting flight instead of a non-stop to get more miles a loophole? Is booking a RT flight, but not taking the return a loophole? Is buying magazines you have no interest in, but getting do it for the points a loophole? Is paying for everyones dinner and getting points, then getting cash from the other diners at the table a loophole?

So, what was the "loophole" being discussed?