I actually know that guy, he was a friend of my older brother's. Used to see him at the gym quite a bit. Him and his dad are into wrenching if I remember right. Don't ever really talk to him, hadn't seen him in a couple of years.
I never saw him on the bike, so I'd speculate he bought it to tinker with. He probably bought it thinking it would be a cool cafe but then he realized it would take more work than just a battery. It seems he's worked on it a little since I last saw it on CL but not enough to be road worthy, hence the comment that he's ridden it around the neighborhood, not to mention the tires won't hold air.