Don't get me wrong it wasn't perfect in classic either.
You were only informed when viewing a forum not when making a reply. And it was a little obscure tucked away in the very bottom of the screen with all the other clutter.
I just think that for less experienced users, they think that they are doing something wrong since they can't post or reply. When it is just a permission setting that prohibits them.
As to your comment:
I'm with you on that and I too posted about that a LONG time ago now
I can't fault Infopop.
Poor Rick gets bombarded with suggestions from several forums for changes(change log,feature suggestions,bug fixes,General chat,ETC) plus all the private messages.
Then he has his own agenda items to address.
In fact I don't know how he keeps up with it at all.
You don't see other places like Microsoft soliciting feedback directly from the users and still provide user support(supported or not) and still does all the programming.
PS: Don't overlook the Beta testers as a resource here for support. But they provide suggestions also.