A “proper” anorexic would be a person who is frightened of gaining weight.  Therefore, this person would weigh themselves many times a day, starve, exercise excessively, never eat more than 300 calories a day or less; and never be able to eat anything without worrying that they are overweight and must purge with regularity.   Some anorexic’s abuse laxatives, and others binge and then purge.  The grim reality is that these people are starving themselves to death.  I don’t think that there is a “proper” way to starve yourself.  There are many ways to ruin your health, destroy your future, and throw away every ounce of potential for happiness that you ever had; but none of these activities is considered” proper”.  This behavior is anti-social, anti-life and has a seriously ugly ending.