They don't know the difference between a body shape and a level of damage caused to their body by excess fat. Your body shape is definied mostly by your bone structure, imo. Some people have wider shoulders, some wider pelvic bone, some have long legs, some torso, etc. Combined with the way your body stores the normal amount of fat, it makes a human body shape. When you gain weight, it does not change your shape, it just starts disorting your body. It's not a new shape. It's like saying your blue-grayish beetus leg is a skin color and ranting there are not enough people promoting your type of skin.