Each forum has its own culture. And it evolves over time. You find your place. I’ve probably been here the longest among the audio-related fora I joined, but don’t post as much these days. I know quite a few folks from WBF. Common base is a shared love of music, though it often comes out as a gear quest, since our respective tastes in music differ. There are still some long time members here, I think I started posting in around 2006, when I made the transition from ’stats to horns.
And I think there is a burn-out factor after a while, not meant as a diss to anybody here, but at a certain point, you’ve covered the ground, the "latest and greatest" is not always the answer and at least in my case, I have a variety of interests, as I’m sure many here do, that keep me occupied since I’m no longer in "gear acquisition mode."