Orkut fuss - Fake profiles

Read this post on Mumbai mirror.

Being an Orkut user, I can feel the trouble caused to this girl. Really a sad incident on Orkut. We come across several warnings about the level of details you can publish on Web (not just on Orkut) where such details become public. I believe those details which might NOT benefit you professionally need NOT be put on web at all. If you still wanna leverage the potential of web for your personal things, I guess a secure access system must be set up for your family or friends (login etc).

Keeping this issue aside, how are we going to deal with fake profiles (either an inexistent real person or a duplicate portrayal) ??? Internet is popular because of its quick processing system - whether it is an account approval, communication or any other information processing for that matter. Is it necessary for web portals to verify the credibility of new accounts? Will doing this affect the "efficiency" that internet boasts???

In long term, will it be necessary for us to build a centralised repository to store user profiles which can be accessed by these web portals when creating accounts? Just like IANA controls IP addresses, would a body be required to control the user profiles too???