I wonder all the time.
I came to JWN hoping to find some old friends who'd been Df'd. On my first posting thread I knew some in common with Besty (not sure who he doesn't know). It made a difference to me to know that there are people I've met on here. I'm always on the lookout for people/places that I know - although would need to be pretty confident of their status as I won't risk outing myself.