Operational control aside, "CREW" on your badge is a godsend for all the dispatcher at regional and cargo airlines. When I was at a regional cargo, TSA had to google my airline more than once just to let me through security, even at airports my company flew. As soon as "CREW" was added to the badge, TSA would actually let me through checkpoints with just the badge and sometimes asked for a gov ID (Passport or Driver Licence) When most airlines you jumpseat with make you go to the to the gate to list, its becomes a Sisyphean task for TSA to demand a ticket to go through the checkpoint and Delta/United/Southwest/American not listing you at the ticket counter