Seems odd to complain about TM 'double dipping' on fees since that's how they make their money. It really doesn't matter whether it's a ticket you already bought or one that came from the box office, TM collects a fee per sale. Why would they even want to do business with resellers if they couldn't collect a fee? Hell they could probably get away with charging the seller and the buyer a hefty fee, both parties would probably pay.
It also seems weird to complain about how much money TM makes, like good on them for finding a market with people willing to pay so much.