There are, per government estimates, 44 million sport fishermen in this country. They spend a lot of money traveling. On their behalf, then, I would like to know What Does Delta Have Against Fishermen?
Keep an eye on this Travel page, since if I should ever learn (though it probably won't be from that "final-word" spokesman) that Delta has changed its rules to be equitable with other sports and with other airlines, it will be my pleasure to inform SF's audience. But you may not want to hold your breath.