Maybe that could be the reason why the person who originally posted the movie did it anonymously, because they could be blamed for causing more potential problems then the chiseler.
However, at this point I think that the movie that started this thread was taken on PIPC property so the cat is out of the bag, right? Although I will admit that this seems to be much worse than what that movie depicts and I am not sure just how extensive it is yet. I have to back there and find out.
But as far as I and other people like me are concerned they are drilling on our property and we don't like it. The point is that the drilling needs to stop, I think that this is more important than us climbing. Those holes will be there forever, we will only be here for another 30 or 40 years.
What would you do if you caught them drilling? Beg them to stop or call the police?