This is really about liability
As far as I can tell, the retailers are upset about how the payment processors are trying to get them to move to more secure payment methods. Starting some time next year, the retailer is responsible for any fraud done using old-fashioned swipe cards. I guess the retailers don't like to be pushed around, so they're retaliating through their customers. This is the best explanation I can find for why they want to push such a consumer-hostile system as CurrentC.
As for me, I don't trust digital payment systems with all their tracking methods, so I pay for most purchases with cash.