just because you copy something doesnt mean that its a spammy site.
im reminded of a site that Twitter purchased a while back for millions (i cant remember the exact amount, but it was enough to buy a very, very big boat). all it did was collect together all your favourite tweets into one place. (was it called tweetdeck?)
so all the info was coming straight from twitter. nothing was created. it was just all collected together in one place. and twitter thought it was so great that they bought it out for a small fortune.
now, im not suggesting that his coupon site was as good as that, because that would be silly. i realise that tweetdeck is a lot more professional. but what is the real difference between the two sites? one collects all the tweets into one place, and one collects all the coupons into one place. but one is dismissed as spam, and the other is worth 20 million quid.