Hahaha this is really some "why does water flow down" level shit. Bikes in NL get stolen by junkies, homeless, generally people without many options and definitely without the ability to do organized crime. They sell it asap, by circling around random people and saying "hey wanna buy a bike?" and then they buy whatever hit/food they needed to steal and sell the bike for. It's a pretty sad situation IMO, but it's no mystery.
I know lots of people who bought their own bike back at some point in life, and even more who never bought a bike from anyone other than someone like this. Bike theft in NL really is the pettiest of petty crimes and I'm confused about what makes MIT, of all places, decide to try and figure this out.