I was interested in knowing about how Rahasya tracked down the IPs because in sajha i have been reading about tracking down the IPs of sajha users from time and often. As far as i know, the administrator can employ some tools or coding to track down the IPs of users (which is not an illegal thing to do) but I don't know how sajha users can track down the IPs of other sajha members.
This would be a good thing to learn.