+1000.
I don't think MSPEconomist is "high maintenance" at all. I have had issues with many of the same things myself. So did you volunteer to pay DL more when you needed to call for #8 and #9 yourself, since in your own words you must be a "high maintenance" passenger if you need to call the airline?
I used my smartphone app to resolve #8 and #9. Never had to call the help line. Sorry I did make that clear. Come to think of it, I can not remember the last time I called an airline. Must have been around 1989 when I started using the Internet. Must be close to 1000 straight segments since I called.
Answer me this .... Do you really think that there will be any call centers at all by the year 2020? Isn't it inevitable that they will disappear.