In reply to UKB Shark:
It's hardly been well-publicised. I looked again at the last Newsletter but there's no mention of it there. When I looked more closely I spotted a small and easily overlooked link to the monthly bulletin, where information about the forum is tucked away near the bottom of the page.
So it has been publicised, but I'm reminded of the planning application in Hitchhiker's Guide to the Galaxy:
“But the plans were on display…”
“On display? I eventually had to go down to the cellar to find them.”
“That’s the display department.”
“With a flashlight.”
“Ah, well, the lights had probably gone.”
“So had the stairs.”
“But look, you found the notice, didn’t you?”
“Yes,” said Arthur, “yes I did. It was on display in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying ‘Beware of the Leopard.”