Im guilty of drinking on the trails years ago. I had an eye opening experience going uphill in my rzr, got bouncing around and ended up facing downhill quickly, I was lucky thats all that happened as it could have been much worse. I no longer drink when I ride or carry beer. But I am also almost always conceal carrying as well, so wont have a beer at lunch even if its allowed. When we are back at the campsite at night, thats a different story.
It sucks the people got fined, but then again, when you knowingly break the rules, its hard to blame anyone else when you get caught. Some of the guys I ride with carry beer and drink, they know the chance they are taking and are willing to risk it. Cant blame anyone else if they get caught.