And yes, there have been *many* times on the back roads that I have pulled over to the far right and waved following traffic on when I (for whatever reason) want to go significantly slower than the posted speed limit. Yes, I do chose a place where there is good line of sight, and yes, the vehicles behind have to move into the opposing lane to pass, but I always get a "thank you" wave for being considerate. You don't have to pull off the road. You CAN stop on the road in your lane - simply put your flashers on and wave cars onward with your hand out the window.
However, the real point of my prior post was to point out how the shoe fits on the other foot...or hoof.