WOW! Thanks for all the thoughtful replies.

As for as the moral issues, I find little difference in my “scenario” and the seemingly “approved” practice of opening a new CC account, making a single purchase and then closing the account to reap the miles. Or likewise the “approved” practice of doing balance transfers at zero interest for the sole purpose of gaining miles AND drawing interest on the transferred balance.

People who live in glass houses shouldn’t throw stones, right?