The US has the most users by a fair margin...but I think that you may be onto something, that it may indicative of who has the most "users" actively posting. I've been gong through my followers list and clicking one at a time. Many have not done any posting in a long time. I've done this before myself but I wonder how many post and do activity when the Steem is up and vs when it's down?
RE: Musing Posts