I'm a member of several different gaming/deal communities and on each there were reports by the members of using copies and scans of the March @Gamer coupons. Not to mention some users on SlickDeals reported having the cashiers allow them to use only the SKU's from the coupons without having to present or surrender the physical coupons(which some of them didn't have in the first place).
I'm sure such fraudulent use of the coupons and SKU's from them will only lead to the deals being lessened or eliminated due to such abuse if it were to continue. This is why my suggestion is to print the coupons on the same type of reflective security paper that I believe was used for the Gamer's Club Unlocked unlocking coupon that was mailed to people who signed up in store early on in the program. By using such paper for the coupons it should eliminate the scanning and copying of the coupons that was reported repeatedly on sites such as SlickDeals as any attempt to scan or copy the coupons should produce copies that say VOID across them due to the reflective paper.
However, the cashiers working at each Best Buy store would also have to be instructed to not only take the coupons with each single purchase(as some apparently are not), but also what to look for in regards to an official coupon and how to spot a fake. Moreover, some cashiers have been apparently entering in the SKU's from the coupons without the customers actually having the physical coupons on hand. This was because four of the coupons from this month(Batman: Arkham City, Bulletstorm, Mass Effect 2 and Rage) were all scanned into a site called the KeyRing App, thus further facilitating the fraudulent use of the coupons.
Anyway, this is my proposed solution to stop the loss of magazine and Gamer's Club Unlocked subscription sales by making the coupons unique and easily recognizable as legit versus their scanned/copied counterparts. Hopefully by implementing this idea Best Buy can cut down on the fraudulent use of these coupons and keep these amazing gaming deals coming for months(years) to come.