What is the difference between U.S. & U.K. question?

Recently one of my answers was reported & deleted, I was shocked by such capriciousness of complainer, and petitioned the deletion which got my answer reinstated. But I discovered that the question I answered was from U.K.- Ireland section of Y.A...so I concluded that those Brits may be more tacky and complain lot more than Americans...But how can you tell if some question is asked by a Brit, or an American?..I have not noticed any specific designation on questions telling me what part of world they are coming from.