ive read many good comments on both sides of the fence,,or this fence has many sides,,, despite all the nitpicking and one upmanship,whether it be with the pro ama or the who cares crowd,,and  the big whitty comments and fancy wording,,,i can say this,,,i feel very lucky to fly at a field that is run by the bearu of land management,,,open dry lake,,,, and theres no club or ama requirements,,,, what we do is if we see someone doing something dangerous ,some of us do it tactfully,,,some dont ,,,,we advise them that they could be liable for any damage to persons or property,,yes thers not the ama keeping things in order there but as a former club member and ama member,it works for me,,now as per this thread,,everything i just said could be dissected ,,but hey its my experience ,so im not trying to get everyone to think like me just chiming in.....