I wonder what criteria is used - number of stories, kudos, details, location, combination of all the above? Perhaps I'm almost there, but maybe not. I think nowwhere160 is on the cusp as well.
They are secretive about the criteria for leveling up. When I signed on one day I was Nationally Recognized and a little later that day I saw was received a promotion. I don’t remember doing anything out of the ordinary I just must have hit the magic promotion button. It’ll come for you.