This is the only response I will give since we are friends
I am sure the manufacturers did not intend and did not approve of "overage" being used in that manner, or to that degree, or in those "unreasonable" amounts either. Certainly manufacturers sponsoring the promos did not intend for overage to be used on products they did not manufacture and were not affiliated with. It appears the definition of "ethics" is evolving, as it relates to coupon use.
Jill knows very well that the ideal use of coupons in the eyes of the manufactuers is "coupons brought our product to the consumers attention, but they forgot them at home, and still bought the thing anyway, and now they are a loyal, full-price consumer of our product for life." They have a seminar on this subject at every coupon convention there is. It is the subject of many boardroom meetings at every manu that issues coupons. The reason for the very existence of coupons is to create brand recognition, not for them to actually be used. One can still google articles from the !50s! stating this is exactly the point of coupons, and always was.
I am not attacking her. I actually in a way pity her. I don't know if she realizes what she's done yet.