Arguing about the definition of words can be sort of silly but I guess the last thing I'll say here is that, from a travelers perspective, Southwest, with its 19 hubs/minihubs in the US and scheduling philosophy, many cities that are not hubs look like hubs to the traveler. Take ABQ. A non-hub city for Southwest and Delta. In Southwest's system ABQ connects directly with 15 other cities. For Delta only 4(this could be a cherry pick, but it was the first one I looked at). Southwest focuses on the middle class and small business owners (no first class seating, no expensive flights to Aspen, Jackson Hole, or Sun Valley, no meals, everyone can check bags for free without being on a frequent flyer list, no fees for changing flights, etc) while all the others seem to look to make money on the first class seats and fill the rest as an after thought.

Being in the first group, I like Southwest's system better and wish another airline could try the same system for competition. Jet Blue seemed to start out that way but I have not flown them in years. A quick check of their site it seems that have baggage fees and change fees and look pretty hub centered.