If they have joining procedures, they can put them in the AIP and flight guides and I will read them. I am even happy to confirm, verbally, when phoning for PPR that I have done so. The AIP says they require £1m insurance cover, which I have. I am also willing to confirm that when calling for PPR and I carry a certificate in my aircraft to prove it.
I agree that the problem is likely to be that the airport operators want to impose an exclusion of liability of some kind. Some lawyer has rightly said that courts don't look kindly on exclusion clauses, will hesitate before implying them into verbal contracts and, when faced with an exclusion clause in standard terms and conditions, will often only give effect to that clause where its existence has been brought to the attention of the other party to the contract before the contract is entered into.
But the job of management is to take that advice and find a way to incorporate it into their procedures in a way which doesn't harm their business. My point is that the fax procedure isn't the way. It would, for instance, be 99% as effective to include a line in the AIP and flight guides along the lines of "Use of the airport is subject to the airport's terms and conditions which you are deemed to accept when landing. The terms and conditions are available from [
www.whatever] and include certain exclusions of liability which you are advised to read before using the airport."
QNH1013 - if you are right, that is just depressing.