Frankly, I don't see the value of any such distinction. It is totally meaningless with regard to result. No one really cares if someone else's photo was or was not manipulated, unless it makes some truth claim (like journalism or evidence). No one really cares much about anyone else's photos, for that matter. Yes, it can be a point of pride that you do no more than frame and expose and develop and make a straight print. That's swell. But it's not enough to dichotomize the world.