From your post, I don’t think you were really into internet forums. I was a part of several dozens forums, with tons of overlapping and also different discussions. I was sad when many of them slowly died as Reddit dominated niche communities. The current expression of the community-based fediverse such as Lemmy and Kbin are a return to form that I deeply missed. In the old days you could have an art subforum and the vibe of each art subforum was totally different, but shared the general themes of certain styles of art.
I was very much into Internet forums as a child and posted on quite a few. But I didn’t go on any of the general discussion boards, I focused those on specific topics or niches. That is what’s missing with the fediverse today. Everyone is trying to provide a Reddit alternative right now but forget what made Internet forums of old great - their singular focus on a particular topic, community, or subject.
That’s fair. Everyone has a different way of doing things.