I am a former member of the Facebook group. I say former because WFab deleted me because I questioned his Gestapo like ruling of the group. I guess having an opinion in a group setting is considered "trouble making" to this guy. That said I also think it should be an open viewing group like many other membersy in the group and here ...apparently. It's an extremely unproductive platform set up the way it is I agree. Lots of great information by some of World Machine's best users in there. IMO essential for any level user of straight WM or WM W/GeoGlyph, It's the only place that has active experienced members experimenting and posting results...Pretty active as well. Too bad for the effected companies that one person intentionally limits it's audience. Look at this forum? It's dead
You are definitely not the first person with the same complaint, but I suppose there is no real solution to this problem, since I barely doubt that enough people will be active on this forum if we close the Facebook group, especially since it wasn't the case when the group didn't exist yet.
Someone already tried doing the same with a Slack group, but that place was less active than the forums.
I guess the best solution for people not wanting to use Facebook is creating a fake account and using it only for the group.