Wow, I missed my 10-year anniversary!
I lurked here for quite a while before I eventually signed up. I too really can’t overestimate what a positive influence the SDMB has had on my life.
I’m also a 03-05-2001 joiner. It’s amazing how long I’ve hung around here, although I also think of myself as more lurker-y than anything else. I mostly just drop facts or opinions here and there, and rarely get involved in conversations.
I’ve gone through periods where I was here multiple times a day, and times when I didn’t drop by for months, but I’ve always come back eventually.
Wait… who are you again?
I just passed 11 years. Crazy.
Yes you are.
My number is #36, with several years of the AOL board under my belt as well.
How do you tell what number you are?
A thread I started a few years ago that’s tangentially relevant. From 27.4% in '07, I’m up to 36.4% now. (Which is fucking crazy, but whatever.)
Go to your profile and look at the number at the end of the URL.
I missed my 10, but I’m pretty much a lurker more than anything.
sigh I’d have signed up sooner if I’d thought of a handle quicker!
I never thought about the member numbers…Amazing that there have been over 100,000 members (checked a few new members, who have numbers over 101,000).
I haven’t been a heavy poster in about 8 years, but I still visit daily.
I’m number 7101. 
Currently 104,570 (it’s displayed at the bottom of the home page for the message board). 
Just hold your mouse over your name and look at the status at the bottom of your browser.
I’m #46.
Been here a lonnnnng time. (It’s taking longer than we thought.)
There are going to have to be a LOT of people dying off before I inherit the crown.
I’m #11,630.
The shame will live with me forever.
10,463 for me. Well, I’m beating a lot of the NEW noobs (and Knorf ).
Hey! Today is my 75th month anniversary! (join date 12-08-2004 for those of you that are bad at math.) 0.23 post per day. . .what can I say-I’m a pudytat-we sleep a lot.
I still measure things to some degree by pre- and post- SDMB.
(My watersheds are 1977, 1990, 2001, and 2006.)
I am a bit bummed that my Charter Membership lapsed, but the renewal caught me off guard and at the time I took exception to the requirement to pay two years to regain it. “Hey, Boo! You’re overdue! Give us two, or nuts to you!” Would give three today without blinking, if I could get my Charter status back.
It has been a long time, hasn’t it? I should finally get around to paying up and becoming a Member again.
Double Word. 
I’m number 157.