Do those numbers also hold true for % of submissions, % of comments, % of upvotes/downvotes, etc?
If you have a cosmopolitan group of "users", but the most active ones are largely from the Bay Area, then the point about Bay Area groupthink still stands.
If you have a cosmopolitan group of "users", but the most active ones are largely from the Bay Area, then the point about Bay Area groupthink still stands.