It's fairly common to see these popping up around the country. I saw my first one 3 years ago here at Cataloochee Ski area but I fully understand why. We had people flying just feet above the heads of the people standing in line and buzzing the chairlift.
Once again a few idiots ruin it for everyone.
On the bright side... I worked with the ski area and became their "Go To" UAS Operator and now they refer our company to people wanting UAS images for their ski groups. WIN!