Original Member and FlyerTalk Evangelist
Join Date: May 1998
Location: Kansas City, MO, USA
Programs: DL PM/MM, AA ExPlat, Hyatt Glob, HH Dia, National ECE, Hertz PC
Posts: 16,579
I think the problem is with "brokers" who buy FF award tickets. People will sell the "brokers" miles, and for the "brokers" to get to the miles they access your account and get a ticket issued. The problem is that they could take more miles than they are supposed to.
Of course if a broker does this and the accounts owner calls CO, they don't want to say they sold their miles to a "broker" ... that's against the rules ...
As for MilageMiner making a guarantee, I don't see that happening, because how can they be assured that you don't give your PIN to anyone else?