I was checking the profile. It did not post yet and last active session was July 20. There is high chance that someone entered their dirty hand and got the access. High profiles like this account should go through proper security check to verify the original users authenticity. It will be hard though if the legend destroyed the private key of the addresses he used.
Yes you are right and I did checked his profile there was no post made after the password and email was changed.
Don't you think if is Laszlo he wouldn't hesitate to sign a message to prove his welcome back to the forum, but what still keep everyone muted is that he hasn't posted yet, maybe when he post and from his posting pattern then it would attract people to ask him to come sign a message from his previous address associated with the forum.