Originally posted by all thumbs I've wondered about these things, too!
Glad to have a partner in curiosity.
That explains most of it. It doesn't say anything about "Veteran Members" or "Junior Members," though. I mostly see those on older posts, so maybe those titles are defunct. Also, the second post in that thread is by a "Senior Member," but he doesn't conform to the requirements listed on that same page (he has 107 posts, but you need between 300 and 999 to be "Senior.") I guess these things have been changed over time, but the old titles stick.
Thanks for clearing that up. I guess I was supposed to read that page when I signed up...