Good list, lol. For me, the pile idea originates in the fact that at our climo snow has a way of disappearing, even multiple times during a winter. You never know how long your snow cover is going to stick around, beyond a week or two.
So the concept is to preserve it, since I like it around during the winter. Bigger pile theoretically equals longer duration. Sometimes it becomes a thing, haha. It might not if I lived in Maine?
Footprints in the snow, lol. I get that, but we have so many night critters around here that after a few days it looks like a kids playground.