Look, lets get this clear.
We have a whole forum dedicated to hobby engineering in its widest sense.
Every such forum needs a space where people can discuss their wider interests. Any large group of people with a strong common interest (hobby engineering) will have many significant groups within it with other shared interests.
Rightly or wrongly this particular thread (and its predecessors) has answered that need for this forum. As such it has become our forum chat-room.
Trying to close this down is pointless, and is like someone going round a club day or exhibition telling people off for discussing the weather or the football.
Where wider but still engineering-related topics (astronomy and aeroplanes, for example) start taking up too much space, they can get their own topics/threads elsewhere.
I know many users would like to encourage more people to post build threads and reports on their workshop activity. Such reports remain welcome here, but I suspect many people don't feel they achieve enough 'today' to be worth reporting.
I suggest that what we need is a separate workshop progress thread that is dedicated to updates (daily, monthly or less frequent) on workshop and modelling milestones, rather than taking away what has become the liveliest and most varied thread on this forum.
This forum may not be to everyone's tastes, but it clearly does engage the majority. And after all, anyone who finds this thread too wide-ranging is not going to be forced to read it.
Neil