Yes, I don't find the "energy to start moving" explanation very rational too but whatever is the reason cyclists want to blow stops and reds, I am just confused how somebody can believe that it makes cycling safer. Especially the one given, that bikes are more fragile than cars, it just does not follow. I would not run a red light in a car for the fear of a side collision and my chances to survive one in a car are so much greater than on a bike.