Earlier quoted context omitted.
If you have poor credit, you get a crappy credit card: low limit, high interest rates, no rewards. If you've got great credit, you get a high limit, slightly-less-astronomical rates, and all the rewards. The cost of the rewards is (as I understand it) mainly carried by the transaction fees, spread out over all purchases everywhere. So you have pointless price increases for people who /don't/ use credit cards (like me…
I had poor credit at a point in time. I "bought" a credit card to build my credit by putting a deposit. After 1 year of on-time payments I was able to graduate to a credit card with cash back. The system didn't feel punitive to me, and honestly, I had poor credit in the first place because I was irresponsible while in college.
There are relatively few businesses in the world that can rip someone off for a year, then allow them to pay a more reasonable fee in exchange for guaranteed business, and still have the consumer claim that the system “doesn’t feel punitive.” The whole thing is kind of brilliant.