hmm perhaps some more clues for the post counts and designations
https://forums.macrumors.com/posts/16613590/
Thank you for posting this. You have enabled me to scratch an itch - the itch of the unknown answer to the oft asked question, which - inexplicably and bizarrely - had persisted for the last few days. No longer. You have my gratitude; the curiosity of this nerd has been satisfied........