Upcountry drivers are usually pretty courteous drivers on our narrow, winding back roads. More often than not, they will pull over to the right if a faster driver approaches from the rear. Unfortunately, they don't always think about the safety issues involved in their choices.
It is exceptionally dangerous to only get partway off the road. It forces the passing driver to move into the oncoming lane. If the straight in front is too short, if there are upcoming blind corners, hills or valleys or vegetation that prevent safe passing, you are endangering yourself, the passing driver and any oncoming cars hidden by the road features. It could end in real tragedy.
So, by all means, continue to be courteous to one another on the back roads, but be safe, too. When in doubt, stay in your lane.