Yes, you are right. The BBSs are only open to on-campus users now.
For the real ID thing, I meant that I had to give my real name when registering for an username. Of course the username can be arbitrary, and the real name is not visible except to the admin'tors. That was my experience for most BBSs I used.
Anyway, Chinese students everywhere are very sad about this incident.
This may be a design flaw that affects Windows XP and Server 2003 family.
Summary: If you use power button or any hardware means to hibernate your windows when you are at the log on screen, the password on your log on dialog won't be cleared. So if another person reboot the system, he/she can log on without entering password.
Here's how you can repeat this problem:
"Take that, you hostile sons-of-bitches!" -- James Coburn, in the finale of _The_President's_Analyst_