Yeah, completely unrealistic -- basically just a publicity stunt from Wired. Someone who is really trying not to be found doesn't create a Twitter account describing his actions, protected or not.
You'd be surprised. There was a story where I live about a guy who got busted on a drug charge and fled. Changed his name, got a British passport, successfully lived in the UK for six years. He was found by local authorities on Facebook. He is now in jail for 25 years.