User blog comment:A5637/What were you at (about) when you got each rank?/@comment-3966510-20121110040537

Perhaps the Mods determine when you rank up, based on your contribution to the site. Very unlikely, but thats how it seems. I had 2 posts and 2 likes recieved for 3 hours straight and it took 3 hours after I acheived 2 posts and 2 likes to actually see my rank increase.