“He probably left an IP address when he posted to this guy’s blog, “
Not so easy were he using Tor and a $5/mo. VPN.
Yes, I know, but if he had done this I'm sure we'd have known about it from the FBI, as it would have been an excuse for them. In addition, why would someone savvy enough to do that also use their real name? FReeper’s found his online footprints (social media accounts, etc.) extremely quickly, as soon as his name came out.