I seldom hear anyone else mention this. I will say that I love to ride before first light in the morning and while I usually run some kind of blinkie on the back generally do not use a front light. I would feel less comfortable about this in town, but out on the open road I think it works very well. It wouldn't really bother me to go sans lights altogether in rural open road low traffic conditions where I most often ride in the dark.

I have found that I really can ride in most conditions without a light to see by and would probably only use be seen lights on tour if I use lights at all. I did ride out of Marfa TX on a moonless night with no headlamp and it was a bit dicey when cars passed because it was hard to tell where there was or was not a ride-able shoulder. Most other times it has been pleasant and a non issue.

Off road I have ridden a good bit with a minimal light like a Tikka and find that acceptable. When it is a full moon light-less single track is a lot of fun. None my night off road riding was in a touring context though.