Makes me wonder how many currently active members have post counts higher than their member number. At a guess, maybe two or three hundred. I’ve been around for a long time (not quite a 99er, but close), but only passed my member number fairly recently, either last year or the year before.
I am one at 6,373 as a membership number and a little over 24,400 posts.
I’m 27,006.
Another 15 years or so and I’ll have some real bragging rights.
Looks like I’m good to go! I have to post 12,223 more times to catch my number! I kinda doubt I’d make that. 
I’m certainly not a low number (39,146), but I’m almost exactly 1/3rd of the way (13,129) to posting past my user number. I figure another 26 years to go at my SDMB lifetime average rate, or more like 8 years at my recent rate.
I probably get there if some crisis doesn’t kill me (or the 'Dope) early.
This afternoon, I’ve been looking for people who are the more-posts-than-member# club (we need a better name if this is going to be a thing). I’ve found about 45 members plus a few that are real close (ftg for example is only 55 short). But that’s mostly seeing people who’ve posted in threads I’m interested in. I’m sure there’s plenty of people who qualify who I did not see.
I’m on an iPad and hence it isn’t easy to jump around to check the numbers, but my user id is around 2500 and my post count is over 5000.
I’ve always found it interesting that I am one of the 99 club as I have never in my life seen the newspaper column, one of the books or the TV show. I also did not use the AOL (?) thing. I must have been Alta Vistaing for something when the site was barely an infant and stuck around. I wonder what it was.
A few years ago, a thread asked why Cecil Adams wasn’t Member Number One. A moderator answered that he originally did have #1, but the software disappeared it. He had to be reassigned a later number.
I just checked, and Cecil Adams last posted in October of 2013.
I’m user #1544. Nothing special here… I became aware of the Straight Dope through the books sometime in the mid-nineties. Gad, twenty years ago!
I’m user #2541. I’m getting close to 10x as many posts as my number. I should have more pointless arguments on here.
At # 33 I am the oldest continuous regular poster who is/was never admin or worker (mod, adviser ) who has never taken a break.
There are a few with lower Numbers but they are admin, mods, whatnot, and or have taken breaks from the board.
There are folks who were on the AOL boards longer than I but for whatever reason did not transfer for a few days.
I don’t know my number. I’m listed as ‘‘guest’’ but I was a Charter Member for the first couple of years of the paid membership. Thanks again to the kind folks that covered me! Now I’m on the cheap and demoted. (Sigh).
I joined Sept 1 2001 and well remember being glued to the Dope during 9/11.
In the top right of this page is a welcome message, and if you hover over the link it should show your number. You are #17029.
I am number 9680. Still in four digits. Yowza!
I’m member 14048 and I’ve made 14203 posts. I very recently surpassed my member number right before I knew it was a thing. 
I’m member #9885. My post count is way higher; there are quite a few I wish I could delete.
For anyone interested, here’s a list of about 65 members who have more posts than their member number. Only active members are listed. I compiled the list mostly from posts in threads I read today. I’m sure it’s very incomplete. As I said earlier, there’s probably a couple-three hundred people who qualify.
member # post count username
==================================
6 1,788 Ed Zotti
14 19,642 Monty
22 7,971 Eutychus
32 10,420 TubaDiva
33 7,012 GusNSpot
39 2,781 Doug Bowe
41 15,614 gotpasswords
45 14,270 AskNott
46 13,764 PunditLisa
47 837 KCB615
82 38,960 tomndebb
215 6,931 Doctor Jackson
300 20,116 Revtim
774 44,569 Csarcasm
937 31,824 Left Hand of Dorkness
1492 21,122 NorthernPiper
1544 27,055 Sunspace
1686 12,913 Wendell Wagner
1972 13,197 Earl Snake-Hips Tucker
2255 5,487 amanset
2324 11,871 scr4
2541 21,540 GuanoLad
2661 5,239 Eureka
2709 24,923 kaylasdad99
2917 18,356 Musicat
2941 12,431 Ike Witt
3516 66,540 Little Nemo
3665 49,148 Bricker
3693 16,848 Kimstu
3734 29,602 Bosda Di'Chi of Tricor
3925 53,353 Johnny L.A.
3932 4,129 dtilque
4176 61,991 Chronos
4278 7,244 HailAnts
4799 15,338 Una Persson
4928 7,766 casdave
5718 21,571 gigi
5807 17,729 Telemark
5911 17,810 Derleth
6200 35,212 pulykamell
6214 22,102 friedo
6323 32,880 Fear Itself
6373 24,431 Shagnasty
7108 34,280 RickJay
7481 7,519 Bear_Nenno
7758 20,841 Alessan
7923 9,512 CarnalK
7980 18,528 Lemur866
8220 38,984 EvisL1ves
8244 24,594 Ludovic
8915 10,341 MaxTheVool
9680 11,297 Spoons
9827 24,305 Captain Amazing
9885 25,159 panache45
10115 30,997 Colibri
11001 25,085 Ethilrist
11047 21,201 running coach
13192 22,324 Broomstick
13242 28,166 DrDeth
14048 14,203 hajario
14104 20,759 elfkin477
16467 21,620 ZipperJJ
19015 35,219 Boyo Jim
20755 25,734 dropzone
27822 68,921 John Mace
46809 59,423 Elendil's Heir
Here’s a list of members who are fairly close to exceeding their member number
member # post count username
==================================
5660 4,511 USCDiver
11630 8,043 Knorf
12660 12,605 ftg
13769 13,205 engineer_comp_geek
14776 17,063 don't_ask
16255 12,322 Grrr!
17605 16,438 Dseid
30898 26,739 jsgoddess
36596 33,988 Chefguy
You should start a thread: “Which poster whose postcount exceeds their member# has the latest join date?”.
I was going to start it but since you’ve done so much work on it already, it seems like you should.
Elendil’s Heir would seem to be comfortably in front at this point.
Eh, don’t worry about it. We’ve basically forgotten about those posts. Although why you posted that one I have no idea. You know the one I mean. Seriously. Sheesh. And that other one. Great Og. Anyhow, we’ve mostly forgotten.
I’m member number 83,640.
Getting off your lawn now, yes sir.