Originally Posted by rbessler
This presents the interesting situation where, if your only goal is gaining lifetime status, rather than using miles, that you could swap miles back and forth a few times with Hilton, Diners Club, etc... you'll burn through them very quickly, they'll lose value very quickly, and you'll get nothing tangible out of them, but it might be enough to get you over that 1,000,000 mile threshold.
That is interesting -- have you ever figured out the "multiplier" possibility for this. Like if you have 100,000 AA miles now, how many could you end up with by multiple transfers before they were all gone?