The existence of loyalty clubs are fine. If you use the service a lot, then it is a better deal, and the company gets the benefit that you are more likely to consolidate your spending with them rather than shop around. Win-win.

It is the fact that you can't do anything without them being pushed down your throat that is infuriating. Every interaction with a company these days is an attempt to up-sell. When a small number of retail stores started that, I stopped doing business with them. Now they all do it.