By way of counterpoint, I had a couple of fantastic experiences commuting yesterday. I ride a very wiggly road through a village which is about a mile long, with two pinchpoints of about 100m each. As it's a 20mph limit, I am usually travelling at about the same speed as the cars but my knees wouldn't work yesterday so I wasn't travelling that quickly.
On the way in yesterday morning, I was followed through the village by a blacked-out Range Rover Sport who gave me loads of room, no hassling, no intimidation and who even waited until there was a large clear gap before overtaking, a move which he made clear across the other side of the road. Grateful thanks were waved his way.
And again, on the way home, it was about 8pm so there was very little traffic but a blue van followed me through the village, again without trying to intimidate me and again leaving plenty of room as he passed.
I didn't want to risk it a third time, so I'm in the car today.