I've just spotted your post from a couple of months ago. As one of the Scalefour Society Forum admins, I haven't seen anything reported by members over there.
Can you give any specific examples, rather than having to plough through each and every of the specific links? I know that Tim Horn Baseboards resolves to holding page, as I was looking recently but as Tim was overwhelmed with orders anyway I expect a website is not top of his priorities.
The Scalefour Society does provide this page as a resource for modellers in general, so we would like to ensure that it is always up to date.
Many have stopped trading as reported through the press, others have changed hands.