It's not just Delta. Most of them are saying we don't want your business. Like Continental today announcing they are cutting more jobs, because nobody is traveling. Gee I wonder why? Could it be that air travel has become one of the most unpleasant experiences you can have. Starting with TSA treating you like you are a criminal, to late and missed flights with no other flight options that day, and your lost or damaged luggage almost 50% of the time. I think most people feel they can live without air travel.
If you carry your luggage on the flight you are put through security checks that don't even permit nail clippers or toothpaste tubes bigger than a ketchup packet.
And the airlines don't want you to have more than one carry on item.
I much prefer to drive these days. Even a 6 hour drive vs “30 minute” flight works out to the same time (when you factor in the ride to/from the airport, arriving early enough to go through security, early enough to get to the gate, wait time on the tarmac, the flight itself, and wait time for baggage to make it to the carousel).