Here's another “oh please” for you.
According to you, the coupons are not intended to save people money, but only to encourage brand switching. It sounds like the companies are the ones that are a bunch of scammers, not the people shopping for deals.
However, they assume that a certain amount of “abusers” as you call them, will actually save money and they don't like it. Sorry, I'm not feeling their pain.
Well, do as you will. I’m just telling you that too much exposure for how to game coupon promotions is going to result in their clamping down because it circumvents their purpose, costs them money and doesn’t gain them anything.
My advice would be for everybody to tone it down if you want to continue getting fantastic bargains via couponing. Alerting the herd to it is going to trample the whole thing.