I really do love the idea behind the forum. But I am a very honest guy and everything I saw is said with the upmost respect and it’s just my personal opinion.
The design: I feel that you went for the retro look, although that shines through for me it just seems a little dated and bland.
The content: Your content is great! Really I love it!
I think your forum has a lot of potential and I love how you are updating the community on the fixes your making and the features you’re adding. My suggestion regarding the updates would be to make a note of the fixes you’ve made and the features you’ve added and do a monthly thread with everything that you’ve done, it’s something I used to do and it worked better for engagement and me just spamming the section with everything I’m doing, and doing a monthly thread ensures that everyone sees it and it won’t be missed because something else has been posted if you get what I’m saying.