As a pedestrian, I've almost been hit by cyclists running red lights with reflectors. Since my eyes don't emit beams of light, I had no chance to see them until that last second. I assume any cars going through the intersection would have had the same problem, since the obstacle was to the side rather than directly in front of them.
Reflectors do help make the cyclist more visible to overtaking traffic, but they don't help with anything that does not emit light. The cyclist won't be able to see hazards in the road ahead or other cyclists with reflectors.
I do agree that reflectors are better than nothing in the limited case of overtaking or oncoming cars, but they're not as good as lights. And considering how cheap LEDs and AA batteries are compared with the cost of a bicycle, why are we even arguing about this?
LEDs are cheap, plentiful and actually safe.
http://www.floridabicycle.org/rules/bikelaw.html
If this dude was really riding without lights in the middle of the night then his fate seems more Darwin Award-worthy than anything else.
It sounds like you are repeating something you heard sometime just because it fits your argument, instead of actually having knowledge of the subject. Your assertions are completely untrue and on a bit of reflection (pun intended), you would see that, which means we are dealing with a lack of reflection on your part concerning this tidbit of 'knowledge'.