I agree with this completely. If you are driving slow on the highway, that is absolutely fine, I have absolutely no problem with that, just don’t hog the left lane and refuse to move over. I travel in the middle lane, and it’s dangerous when other drivers have to merge into the lane I’m in to pass a slow car, when they could pass in the passing lane if the slow car would move over. Also dangerous when the slow car tries to pace right next to me or is constantly just off to my side in my blind spot and not ever passing me.