In reply to Mark Sheridan:
Thought you'd be interested because I started that thread specifically to discuss your point b) I also thought it was interesting how many times phrases like your "Stone Farm, at which I have seen a notable deterioration even in the space of a year." have been appearing on here.
As for your point a) this was also discussed recently
& this extract from the SPA was posted:
Candidates must demonstrate competence in the following areas. They should be able to:
2.1 Access
a. understand and observe current access and conservation guidelines.
b. interpret and use effectively the access information given in guidebooks and other sources of information.
c. show an appreciation of and care for all aspects of the climbing environment.
d. show an ability to obtain information on and willingness to comply with locally important crag issues and agreements.
2.2 Conservation
a. demonstrate good practice in the conservation and care of the environment.
b. operate in such a way as to minimise impact on the environment (including the climbing resource).
c. define problems of conservation and the effects of human pressure on the climbing environment.
d. manage groups so that they have minimal impact and leave the crags in an improved condition where possible.
e. demonstrate an awareness of the general environment on UK crags as well as locally important species and the legal situation relating to protected flora/fauna.
f. demonstrate some knowledge of different rock types and crag features.
2.3 Etiquette
a. demonstrate an awareness of responsibilities to the general public, environmental agencies, local residents, landowners and the climbing community.
b. demonstrate an awareness of local rock climbing ethics related to single pitch crags.
c. operate a flexible programme of activities so as to accommodate other site users.
d. be aware of the hazards presented to other site users by the actions of a group and act to minimise these.
e. demonstrate an awareness of the site-specific requirements and agreements relating to different crags, climbing walls and artificial structures.
Clearly whoever these people are they are failing to do this .
Were there any clues ( t-shirts) lettering on van?