I'm sorry, my post must have given the impression that I was talking about credit scores instead of credit cards, which is what I was talking about. As for you

I'm sorry, my post must have given the impression that I was talking about credit scores instead of credit cards, which is what I was talking about. As for your other point, if there were no benefit from floating money for 2 months, then there'd be no benefit from doing that an indefinite number of times, which conflicts with the time value of money, an established, mathematically basic concept.