Defensive snow management. I also clear the upstream bank to my property line at an angle, about 75'. I'll also clear the snow out of the road if the plow has not gone through depending on how much is there. Really dislike needing to go back out after I've put my tractor away just to move what the plow pushed in.
The plow drivers here can be, well, pricks, but not to everyone. The guys that do my road tend to swing wide around my driveway because of the way I take care of it. They don't do this for some of my neighbors that push up big banks close to their driveway and road or across the road. I've seen them swing wide for me and then swing back in for the neighbor and push a 3 foot bank back across the end for them to move. It seems that if you make their life easier they will return the favor but if you make their life harder they will do the same.