Originally Posted by
sydneyracquelle
What is the difference between OP using SM to hold many non-conflicting reservations and buying a bunch of fully refundable revenue tickets - other than the fact that the SM tickets must be cancelled by T-72?
Not much, really. The OP has half a million miles out there. It really doesn't buy that many tickets.
Years ago - nearly a decade? - Delta restricted the number of free redeposits for Plats. Oh, the crap-storm. If it's a problem Delta will change rules to deal with it.