Burger King, home of the flame broiled Whopper, has recently launched yet another unique, edgy, marketing campaign. The brand that brings you The (creepy) King, meat smelling body spray, and many other odd, attention grabbing campaigns, is at it again. The Whopper Sacrifice is a new Facebook application that provides users with a coupon for a free Whooper, if the user is willing to sacrifice 10 friends from his/her Facebook account.There has been a lot of negative feedback on this campaign, citing the fact that it encourages users to exhibit anti-social behavior on a platform fueled by social connections. Many bloggers are shocked that Burger King would launch an application that doesn’t make friends, but instead creates potential enemies. Good or bad, it certainly got a lot of press.Which is exactly why this is a brilliant campaign – it is a unique idea, funny, and it has sparked a lot of attention and discussion. It has all the ingredients for a successful campaign: the brand is getting a ton of exposure and it is driving users to a measurable, revenue driving (most will buy a soda and/or fries), event when customers visit to Burger King to redeem the coupon.  Not to mention it is  accomplishing what all marketers hope and wish for, it has gone viral.To those that argue that it is damaging to the brand, you are taking this campaign way too seriously. Facebook users have plenty of pseudo-friends and are easily able to remove “friends” without damaging any real/online relationships, this is simply a funny way of cleaning up a friend’s list. Also, the fact that people will actually go through with this shows that the Whopper must be THAT good, right?Although a great campaign, it could certainly be improved. Sure, this was pretty viral, getting over 15,000 users in its first day, but Burger King missed an opportunity by not having a way to encourage users to invite friends to add the application. This could have been accomplished through a feature to get free fries by having enough “true friends” identify a certain user’s friendship as being worth more than a Whopper.Another fun idea to improve on the idea would be to add a level of competitiveness to the application, like awarding the Whopper’s biggest fan, the user willing to sacrifice the most friends, with free Whopper’s for a year.Overall, great idea, very good execution.