Does not invalidate the point. Most people stealing stuff would want to minimize their exposure. In this case, the dude is on camera even. Not a good thing if you get caught. We're talking drug addicts looking for some quick money here. So, are they going to touch a bike that that they know will make a lot of noise and alert every cop in a mile radius? Of course they won't. They'll walk away from that every time.

Some of them occasionally will try anyway and that's where the bike hunters come in. We're not talking Sherlock Holmes here. This is simply about chasing down idiots that steal bikes and the scum that buys the bikes knowing full well what they are buying. Easiest job ever, these are not criminal master minds.

Honestly, I'd assume he lost his key ...

Best way to get away with some crime is to act all casual about it. Wear a warning west, you can even got one printed with some official town logo the people will recognize.

eh he's not bothering anybody tho, until he starts making a racket with the dremel or whatever