Wait, what?
Avatar seem to change people. For instance, I realized I started spell checking my posts more when I switch tot he old man from a VG cat with a torch. Its like if you wear athletic wear, you'll act athletic-ish. If you year a suit, you'll act formal.
THus if you have a silly avatar, you'll act silly. If you have a serious avatar, you'll act serious. I know this is not true of everyone, but I believe its true of some.
Thus, modifier, as it modifys the person's personality.