Again, I think it depends on where you ride. Rural riders have to be a lot more worried about overtaking collisions - we're a lot more likely to have people who are zoning out, who have been driving the same speed (often 60+ MPH) and direction with no stop for miles, they're sleepy and have had no distraction (turning, stopping, things to look at), and we have almost no cross street traffic.

In the city I can well believe that oncoming traffic is a much bigger issue than it is for me - but in my situation, I run a lot of taillight and I think it's justified, for me.

So I think as with all things on BF, we need to be careful when giving out advice that we find out the particular person's situation and make sure we're addressing them and giving them the proper caveats.