Andy - Not sure what you base that assumption on, most NP people want people to get out and about in there Park, but yes they do have a few conditions on entry which should be abided by . . .
Love how you make the leap from pitons to sport climbing, completely skipping trad climbing and removable protection in one fell swoop. Do you have any idea how long stainless rings last? Or how long the glue will be good for? Do you really think that SS Rings and loweroffs is the high point of climbing?
The various infrastructure that you complain about is for all park users, including climbers, and it really doesn't matter what you think about it as it is not your call, its NPWS's ...
If the bushwalkers decided to put in a campsite with benches and tables and a little all weather protection out at Dargan I think NP would want it removed as well . . .
Not sure of precise answers to your final questions but basically there has been dialogue going on between climbers and NPWS for decades.
Evan - not sure what you mean by keats publications or how it conflicts, but the development of the area obviously conflicts with how NP want to manage the area in question, which is what they are entitled to do as its their job . . .