Why do people get so mad over people using fake photos?

It's not that big of deal. It only becomes a big deal if the person is trying to get money or other physical goods out of you. Let people pretend to be whatever they want to be. If it makes them feel happy for once in their lives why take that away from them? If someone wants to pretend to be someone gorgeous then let them do it. If it is not hurting you then who cares.