Username over head in survival mode

I know some are fans some are not but when im playing survival i love to grief. Some people do get annoyed about it but it goes both ways. it is a big way to get loot you cant find. But Survival maps are so big that you can never find other players. It is pretty much impossible. This is why we need usernames over players in survival. Its also a good way to find friends in survival like sometimes i play with my brother. Sometimes we drift off and we can not find each other.