Recently there was long thread about the BCA. I can now post possible answers to some of the questions, such as "Why is the BCA still raising membership prices when there is a significant amount still left in its coffers?"
4 of those 5 painted by Mark "Gonzo" Lumley - originally they didn't expect to award it every year, but most of the last 14 the entry minimum has been well exceeded (first 10 years averaged over 1 mile of new passage between the digs)