but this place is noticeably whiter, maler and more American than it was previously...
I don't have any real numbers to back up my statements. Should we do a demographics poll? It might be interesting to see what the actual breakdown is.
I don't know what a self-reporting demographics poll would accomplish. That said, I'm not against it or anything, I'm just not sure it would elucidate. More useful, I would think, to run a script through the membership breakdown by gender and geography (where given) and then sort that by number of posts (excluding, perhaps, moderators) and last post.
From a strictly anecdotal perspective, I have a mental list of people who no longer post, or post so sporadically as to be virtually non-participating whose acumen, insight and perspective I miss.
They are:
hautdesert, palimpsest, CatRambo, J.R. Blackwell (female)
Simon Painter, Roney, sirana (European)
GoodDamon, Thaurismunths, slic, ClintMemo, Tango Alpha Delta (white, male, middle-class and American AFAIK, but I liked what they wrote anyways)
Caveat: It's possible some of these people still participate but are in threads I avoid. I miss them in the story comment threads, which are usually the only ones I still read.