Have any of the news channels (CNN, ABC, Sky, BBC?) picked up on this or even found him? I'm sure he's feeling pretty bad right now.
Like the story of being able to carry out the atrocities on Tuesday having only flown MS Flight Simulator on a home PC, I think this too is a red herring.
It is though a lesson that postings onto sites such as these may be read and noted by a lot more people than you may think and that they may be rediscovered long into the future.