Well, since I got credit for submitting http://www.snopes.com, I might as well see if I can get “Ask the Gay Guy!” submitted. 
The links to both parts I and II are in my .sig line. Use 'em in good health, Ed.
Esprix
I cannot believe that no one has mentioned this masterpiece, started by Shayna!
http://boards.straightdope.com/sdmb/showthread.php?threadid=23199
It’s the SD SMOKE-OUT topic. More acurately, it is Part One of said topic. Give Part Two a couple of weeks, and it’ll be ready as well.
Kimstu posted “I Am The Very Model Of A Modern Libertarian” here.
Ed –
I nominate my Do birds drown in hurricanes because of their upturned nostrils?
I haven’t seen too many threadspotting topics from GQ and I think this is a good un.
Well I am gonna nominate Nurlman’s Thread. I thought it’s ‘Anatomy of’ style was hysterical and genius.
This is truly a classic, and one of the threads that hooked me on the SDMB.
Good God, psycat. How did I ever forget the FormerAgent/Finder fiasco. Thanks for bringing this up again. It’s priceless.
Note to Ed: I’d be happy to clean up the code in there if you want to put this in the Threadspotting feature.
I’ve been assured it’s not guache to nominate your own thread for Threadspotting, so forgive me if I’ve been misinformed.
“Without any pants on…”
http://boards.straightdope.com/sdmb/showthread.php?threadid=16336
Amy tortures her Dad:
http://boards.straightdope.com/sdmb/showthread.php?threadid=26972&pagenumber=1#newpost
Is it illegal to carve your name in the moon with a big ass laser? by Breckinshire has just got to go in Threadspotting!
Steak Wasting. A true Scylla classic.
I nominate this one! A rip-rollicking wet time was had by all.
http://boards.straightdope.com/sdmb/showthread.php?threadid=26657&pagenumber=1
I think this one shows some promise:
A definite candidate for Threadspotting is going on in IMHO:
Dueling Quotes