It is easy to add your personal avatar. You can access this through your profile and find an avatar button on the menu at the top of the discussion box. You can add your personal photo or icon or select one from the gallery of avatars you can select when you start the process. There are several pages of avatars in the gallery.
Have a face in this crowd.
"There is no route out of the maze. The maze shifts as you move through it because it is alive. "
— Philip K. Dick (VALIS)