Trade your affinity card with someone else’s, and keep doing that. You get the perks, they get data they do not realize is scrambled.
You're on to something. On your own computer, go to something that messes up the profile...like I think I'll do a search shrubbery for my yard. Use each others cell phones and computers, use each others affinity cards, offer to purchase things on a stranger's affinity card in line so they can get credit for the purchase. Totally scrambled information is useless. It goes without saying to pay cash and be very self-aware of what is purchased on line.
I'm impressed with the idea of "scrambling" information. It's an idea that we all should share.