I guess, using pseudo name gives people more freedom to use keyboards in the way they want. When you are using your real name, you just impose a limit on yourself because you are bound to think that someome who knows you might be reading your words. Using real name does have the benefit that you may come across the lost buddies from your past but still there can be many people who share the same name. And...even with my pseudo-name, I did manage to get hold of few old frns here in Sajha.