It hasn't, though. It's that it just looks different.

This board is just reflective of its time, 20+ years ago. At that time this *was* sophisticated. There weren't yet places like Facebook and Twitter. This was the step up from email lists we had back then. We moved from interacting through email to a website, where we could create user names and passwords! Awesome!

Technology has grown to meet the needs of what people want in their online communities. We get pretty graphics, seamlessly integrated elements, and more ways to customize each user's experience, like profiles, photo and video albums, etc. And now, in the age of the gig economy, which helps people supplement, or (theoretically) gain independence from exploitative labor industries, we have things like OnlyFans and Patreon. A natural evolution, really.

So, while this board can be comforting in its simplicity it is outdated. It's the grandparent of stuff like FetLife, which is essentially the same thing; Fetlife is just wearing a newer outfit. Each forum here is like a group there. Each moderator here is like a moderator there. Each discussion here is like one there, except it only allows the equivalent of "flat mode". You get the picture.

All the structures are the same, it's just the user interface that's different.