Replying to Ski Etiquette and Courtesy

There's a lot of pretty basic ski etiquette that we all observe; don't snake people, don't use lips as jumps, don't cut the lift line, etc. But there's still a lot of things that happen on the mountain that piss me off. Mainly, I hate when upper mountain lifts aren't running (wind, weather, whatever) and people decide to traverse as high as they can across the faces just to get ~10 turns. Then the top opens and there's massive fucking traverse cuts through the runs. The wind holds in Mammoth makes this especially egregious and sometimes there's 2ft wide traverses across the hill. Like, just fucking wait and hour and actually enjoy the top of the mountain when it opens. Nobody thinks your 10 mom carves are cool.

What are some other unofficial rules that skiers should follow?