I just find there is a mix up with real name and usernames.
Real Name = Real name, mine is Tom
Username = name you want to use in forum or site, mine is Crazycanuck
For some reason, some Joomla sites like this one, display my real name and not my nick/username.
At Joomlapolism, my nick/username Canuck is displayed as it should be, but at Joomla.org, my real name is displayed (but in that case I used my username/nick for both real and user, I caught on to it

)
I look at my members list, and 100% of my members have nicks as usernames. Those that entered their real names in the real name box, are freaked out at first when they see their real name being displayed. I was getting a lot of PMs from people about their real name being displayed, so I posted above the forums and made a sticky in the forums as to how to change the displayed name to their nick.
In this forum my username, which is Crazycanuck, is hidden, while my real name Tom is shown, which was not meant to be shown.
Lots of confusion.