from what i've seen, there is policing. but unfortunately, the ratio of dickheads is/or can be overwhelming sometimes. lets face it, if you throw your young kid on the front of your bike with no helmet, zip on up the track on the back wheel and get away with it, what happens to that kid when he gets older? damn right! he's on the back wheel with no helmet cause thats all he knows and stuff the consequences.
i do think though, that some of the "BIG" jumps at blackduck should have some kind of qualifying system to them. i've had a crack at the 100 footer and thats a big jump! and rookies get out there and "have a go". that could be fine tuned a little for sure but once again, thats only one small aspect of the place. theres so much more to it thats just fun.