Anorexia and Bulimia, two types of disordered eating, are not fun, not glamourous, and not enviable. They are not cries for attention. They are also ways of coping with overwhelming emotions, stresses, and experiences.
Fat people are messy, have no willpower, and are jolly but lazy.
You may eat very little so that you lose weight, or you may use the binge-purge method of losing weight. As you become thinner, your feelings about yourself don't change. You keep trying. You gradually become thinner and thinner in an attempt to make your worthless self disappear. This is just one example of why people develop eating disorders.