This follows on from the new that World of Warcraft will be forcing people to use their real names when posting into any of their forums. The idea being that because you cannot hide who you are, you are more likely to be polite and constructive. One of their employees posted his own real name and promptly had all his private details about him, his family and friends posted online in a matter of hours.
How anonymous do you want the Net to be or should everyone be forced to be open about who they are. Is it easier to obnoxious and rude if no-one knows who you are and would a lack of anonymity help prevent this?
Also, do you care how much of your public and private life is online?