The creation date of the email address can be found on the log of the email service providers. His identity is associated with his IP address. Did any researcher done any research to find Satoshi's IP Address ?
How will knowing satoshi's ip address help you?
I think it is time we allow the sleeping dog to lie in peace, satoshi didn't want his face in the public or his identity known, why can't we just respect his decision and stop digging already?
Let's say for example, we find Satoshi's IP Address, then what next?
Or assume we are able to link an ID to the ip address used by satoshi, then what next?
I think it's time we stop chasing after who satoshi is and just enjoy his invention - Bitcoin.