I have leftover gift card credit, so I'm MOST LIKELY selling my $15 coupon to the user who gives me the best offer. I'm hoping it will be anything above 5k per USD. This is not an auction.
Because they got rid of gift cards with the new donation system, people who had previously bought gift cards still had money invested in ECC. Now, with buy craft, the server can give out coupon codes, and StoneIronZ has a $15 USD one. When you go to purchase something on buy craft, you can now use his one-time coupon if you buy it, and get $15 off of your purchase.