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Supply and demand. You want coupons, they got coupons. They settle the price for them. Welcome to Capitalism, I'll be your guide.

There have been similar threads in the past. If you want to do something like that, I strongly recommend doing it here rather than ST. There generally have to be some ground rules. Firstly, people should post what coupons they have only. Posting asking for specific coupons is too close to begging, and it doesn't make them magically available if they're not. It's generally handled first-come first-serve to whoever first posts asking the person who listed it for the specific coupon, to help cut down things like people getting spammed with friend requests long after the coupon is gone. People often place a limit of one coupon per person, as well. It also helps to try and make sure anyone attempting to turn around and trade them for profit or the like is recognized and refused any further coupons. Likewise for anyone who tries to add people posting to beg for coupons or anything else, a suspendable offense. It's extremely helpful if one person or a small group of people oversee the whole affair, and possibly act as mediator(s), accepting coupons from those who don't need them and making a large master offering in the OP to allow for a better-organized central exchange of them. Just some thoughts based on what I've seen done in the past.

Why don't you try to make this one official? With all these sort of coupon threads you're only making it worse.