Originally Posted by
Dieuwer
How do you know it is free? Maybe airlines charge an undisclosed fee on top of the ticket to recoup the frequent flyer program cost. After all, the "YQ surcharge" has no 1-1 relationship with actual fuel cost. "YQ" might as well be the FF program fee + fuel.
Because it didn't cost me anything to sign up and I don't pay an annual fee. If your theory is correct, I'm not that concerned because everyone is paying it, not just SM members.