I have been a member of a couple of forums in the past, which were dedicated to people who bought stuff from the sponsoring site.
2 of those forums disappeared as the sponsoring site was sold to other operators, who just incorporated the merchandising into their sites, and the not the relevant forum. A lot of info was just gone.
Another forum still exists, but with no input because the merchandising sponsor ignores the site, and members lost interest.
I am not on FB, and don't see any need to be involved.
As far as I know, JC does not sell stuff, it is an info site where an answer to a question can be found historically, via the 'Search' function.
Whether JC exists in 50 years is not really important to current members. There will be few current members still around, and even less Holdens.
The pre-Commodore threads have not been used as much as I thought. But, a damn good idea.
I read a reply recently to a motoring report that somebody had never heard of, or seen a photo of a Torana GTR-X.
I saw it at the Bathurst in 1970 (?) Perhaps I am just too old.
My forum opinion ........ same as with cars ........... if it is working OK, don't *** with it just because you can ............ "
I changed my Energy Polariser because I didn't like the colour, and now my car won't work. What happened ?"