1. The phones IMEI is blacklisted after he bought it off Craigslist...? That's a stolen phone if I've ever seen one, buddy.
2. No, it's not "terminated" at that point. Where the hell do you people get this information...? The original owner at that point can have the IMEI blacklist removed just by calling the carrier.
Seriously, if you people don't think that was a stolen phone and the IMEI just MAGICALLY got blacklisted, I've got a bridge to sell you.
As I work in the wireless industry, I deal with blacklisted phones all the time. These shady people walk in and say they bought them off craigslist (yes, it's always craigslist) and then demand to know why they cannot use it on the network. And I look up the IMEI, and *EVERY* time, it's been reported stolen. So stop deluding yourselves into believing the IMEI just randomly
Blacklisted itself, because it didn't. It was stolen and the rightful owner reported it stolen.