Unregulated sports like this are a delicate thing. It’s up to the participants to self regulate and avoid catching the public eye so they don’t lose access to the areas they get to enjoy. This is a huge thing in FAR 103 sports (ultralight flying). Unregulated doesn’t mean “do whatever you want” it means “we’ve given you some leeway here don’t mess it up”.

In this example, If people start getting hurt on a hill - sooner or later using that hill gets banned.