Your post sort of makes sense, but I guess I don't understand the reason behind the codes then. Aren't they supposed to be used?
Was this a case of this specific code being used too much? I rarely saw it posted anywhere and rarely if ever saw it used or mentioned. I never mentioned it.

In my case it has cost Dollar a good portion of my business. I probably only had to use that code once or twice in 10 rentals, but valued it greatly when I did use it. Now that it is gone I find myself shopping much more and in most cases there isn't a compelling reason to still give Dollar my business.

I would love to have an alternative option. Please keep me posted if something comes up.