I hate this practice also, and I feel your pain. I am afraid that if you try to "fix" this you might end up making the condition worse. I have a beautiful Mamiya RB67 that some moron engraved his number on, and at first I was really bothered by it. As time passed, I have come to accept it and I am not as bothered by it as I once was. Just use it for a while, the camera may endear itself on to you as is.