University logins were handles (usually close to "real", but not tied) in my time. I firmly believe the whole real identity thing has always been driven by advertising considerations.

(Our undergrad computing lab had donated CAD workstations, so someone came up with a graphical display of the room, showing who was logged in where. The TA was displeased with me after figuring out that I had set my avatar to the "unoccupied" graphic. IIRC, he added a square outline for logged-in workstations to the display, around the same time.)