I wonder if there's a way to have a similar function (as some 'social media' platforms do) to notify each user after loggin into the site that of notifications - whether replies to their own comments or posts/emails from the webmaster / moderator.

That would involve each member having 'an account' area with storage for (and thus could track) all their own comments.

I suspect though, rather like I said in the other thread about the ongoing issues here with 'arguments', etc, some changes to maybe help matters would likely involve significant changes to the forum software used and maybe even to the way the website is shown. This, in the current economic climate, might be unaffordable for the current site owners who are probably getting far less revenue from ads whilst the forum is completely free to us.

Saying that, the problems with, for example, not being able to click the links in the Reviews section to access the sub-sections on car specs, good/bad, etc in some (well used) browsers and the very old 1024 pixel wide website style/format may put some people off and possibly even preclude the use of some alternative forum software.