> I'm confused on how you got the numbers you mentioned
below.

Bob,
Make sure you're logged in to gc.com, and go to the forums
(http://forums.groundspeak.com/GC/). Click on the "Members" link in the
upper right corner of that page and you'll be taken to the "Member List"
page.
Scroll down to the bottom of that page, and choose the following from the
dropdowns: "All Members" by "Join Date" in "Ascending Order", and more than
10 results per page. Scroll down till you see you. Count upwards from there.
Maybe some of those accounts you found have been deactivated and therefore
don't show up in this list? The site will do that if for example, they get
email bounces on the account over a period of time.
Steve
Team Tierra Buena