Thanks for the responses guys, much appreciated.
Just a FWIW, it wasn’t me that set my post on the other thread to “closed to replies”, which is (IMO) completely counterproductive.
My feeling is that all the comments are valid and would really appreciate learning more about Nigel’s F5 project! In fact it was the prospect of that type of post that was the trigger for my recent joining.
Also, I can’t help thinking that part of the problem may be the forum software itself. Compared to other offerings, it’s not great.