I haven't only been cycling in Copenhagen as you seem to imply. But by your argument, since the problem isn't declining or at least diminished from what it would have been with no legislation in place, therefore we might as well have no laws at all, and stop trying to enforce said laws. What is it with some Americans in particular: They are so insular that they think that no experience in the world apart from their own, on their exact doorstep can in any way be valid. It's utter denial and deflection of the points posted, all so that you can continue with your antisocial behaviour. Oh, right, your are so good at aiming your headlight that noone get's blinded, even momentarily by your use of it.Maybe in Copenhagen. In the US where I ride, "distracted driving" as we call it is a big problem and not a declining one.
Well, at least your half-decent in that you are consistent in your thinking in that you could see the same "benefits" working for motorcyclists too. Not that that in any way makes your argument anymore valid, but at least it is consistent.
The funny thing is, that let's say you actually were right, banning strobing headlights and have them pointed on the road would actually be akin the regulations concerning headlights on cars and motorcycles. However, since we also use lights to determining the direction of travel, a headlight that swerves around isn't exactly helping in that regard. Especially not if you have a couple of people with them on, and as was said: For the person it is directed at it will look like a strobe because they get the full light intermittently.Maybe I should shoot a video of a typical ride at night using the helmet spot beam I'm describing. I think you'll see it is a selective signaling tool, not a broad annoyance tool like a wide-beam strobing helmet light is.