I come here to rant and rave mostly
In terms of 'social media' in general (remembering that the forum pre-dated most of what is so called) this is a niche place and I think that's why it has endured. I suspect it will only do so while Mike is still sufficiently motivated to keep it going.
I sometimes wonder, if I should just shut up (and play my guitar, as Frank said) and devote more energy to getting on with my work (and maintain my blog). But to be honest, I find it's quite an isolated world as an ambient composer, so being able to discuss ambient related things is a valuable thing for me.
There are some real gems posted here, across the board and good advice on technical matters abounds.
I remember the older days when Dirk Serries, Jeff Pearce, Saul Stokes, Dwight Ashley, Jim Cole et al were pretty active and I also remember when there was some unpleasant character assasinations regarding political stuff too - recent heated discussions are nothing new !
Personally, I tire of self-publicists with no other input than promoting their latest album, or whatever, but thats always been an ongoing thing.