John Suler's The Psychology of Cyberspace
Power avatars are symbols of... well... power. Many, if not all, people have conscious or unconscious fantasies of omnipotence. Who wouldn't want strength and invulnerability? These types of avs seem to be most popular among male adolescent users. In some cases the power theme is benign. Sometimes not, which may be a variation of the "evil" avatar. Because competition invariably accompanies displays of power, members seem to vie with each other in creating the most "awesome" power av. This competition is probably more common among the adolescent users. Members who persistantly display power avs may be troubled by underlying feelings of helplessness and insecurity.