How to transfer a ticket:

1. Purchaser buys a fully-refundable ticket from the same airport. He uses the legitimate boarding pass to get past the TSA; no crime there.

2. Once inside, purchaser cancels and gets a refund for the refundable ticket.

3. Purchaser goes to OP's gate, and uses OP's home-printed boarding pass to board.

Nobody checks for the TSA's scribbles; I've printed multiple copies of a boarding pass and used the unscribbled-on one at the gate.

Purchaser has to accept being called by OP's name if the GA mentions a name; no big deal.