I note that BCA has a perfectly good forum of its own where the initial post of this thread also appeared [ https://british-caving.org.uk/phpBB3/viewtopic.php?f=5&t=1565 ] - without any responses so far.
A large proportion of topics and posts on https://british-caving.org.uk/phpBB3 have been made by David Cooke and the person named on the IT Working Group page as responsible for the BCA (sic, not just BCRA) membership system, David Gibson.
Would it not be more appropriate to use BCA's system for discussion with its officers, where they might be less inhibited from responding? Reference to significant posts, and analysis thereof, could then be made on this forum...