Since I went out this morning several others have stepped in with sensible responses. Particular thanks to Rhys for his two posts that have saved me answering those correspondents.
Look, I could spell things out on here more than I have, but it would only be pouring petrol on to flames where some of you are concerned. Read back through my previous contributions. I reiterate once more: there are issues surrounding the dig at Nant y Gwared that do not apply to digs elsewhere, or, for that matter, to the sump in the resurgence.
The insurance issue has been highlighted by the article in Darkness Below, but the DYO management have been clear on this for a long time, so it's not news. But you can be sure that it is not the only aspect of this whole sorry episode that troubles the showcave owner.
One more thing that I ask contributors to be aware of: the management at DYO are all too aware that this thread exists and have seen everything that is written. Whatever your views, please respect the fact that most of the caving community quite like having access to a cave as wonderful as DYO, and would be very unhappy were that access to be lost. Trust me that we have come very close to the edge on this before. Before you click 'post' on your next words of wisdom, just reflect on that. Thanks.