Pyramid schemes are bad enough by themselves, but it takes a truly awful person to turn that into a job interview. Most people lured in by these kinds of things are generally kind of desperate anyway, but it's really messed up to pretend it's an actual job and have people drive from far away just to realize they're about to get scammed.
This guy showed up to one such "interview" and quickly realized what was happening. He then proceeded to completely ruin the scammer's life, and I for one applaud him for it.
If that's not enough, here's another