As a follow-up to my above statement, there is a great deal of fine print on the inside of the cereal box (the stuff people do not read) which states that you cannot sell, barter or whatever AAdvantage coupons...however, to read this information (which I am sure less than 1% of the people who cut the coupons off of the box ever read), it takes a lot of effort because you have to cut or tear the box to get to the rules and regulations and very few people are going to read fine print off of the back of a box of cereal.
Therefore, I stand behind my statement that the main part of the disclaimer of the rules and regs which prohibit selling or bartering should be written on the back of the certificate where people are being forced to write their names on. That part is being read because people are being told how to redeem their miles and that is where the mailing address is provided.
I can certainly understand why normal, everyday people who are new to the AAdvantage program could use ignorance as an excuse to sell their Kellogg's certificates on eBay now. For AA, a little common sense would have gone a long way.