I like posts which start 'I don't understand...' and then answer the 'understand' part further in the post. Always a good contribution.
As for my point, I don't want the feds asking "why" am I going to do something. I'm the pilot, you are the controller, I select how, where, when, and WHY I fly, and you(controller) provide those services. And yes, I realize it's not the controller generally who wants to know the why, but the puppet masters behind the scenes that think they need to keep track of people who fly in the NAS.
On a side note, there's serious talk afoot to make tracking cars a whole lot easier with a dedicated GPS code for each car, and the ability to remotely enable the location service on that car, just like OnStar offers. For those that 'don't understand' that this is a bad idea, well - you are gonna love big brother of the future.