Me too!
Okay, we’re up to 131 names. Not bad, given that I started with three.
80sMetalHairMaven/I_Dig_Bad_Boys
Absolute/Mister V
Aguecheek/NoLongerPatrick
Alice The Goon/trublmakr
Always Brings Pie/Purplkid_Caterer
Anaamika/Elenia28
Antigen/roxx222
Askance/Andrew T
Atreyu/Shy Ghost
Autolycus/xabc_Keitaro/Autolycus
AwSnappity/FireUnderpantsBoobs
Badbadrubberpiggy/tamaraqueenofgoths
Batsinma Belfry/Hillbilly Queen
bbs2k/BigBabySweets2000
black rabbit/black455
BoBettie/Zette
Bosstone/BayleDemon
Boyo Jim/yojimboguy
butter pie/jinwicked
capybara/M.K.
Chanteuse/Mayflower
chaoticbear/chaoticdonkey
Cluricaun/Ryan Mahoney
CoBa/Captain Battery Acid
ComeToTheDarkSideWeHaveCookies/honeydewgrrl
Czarcasm/Slythe
Dangermon/genie
davenportavenger/continuity eror
DeadlyAccurate/throatshot
Demo/Democritus
Dolores Reborn/Dolores Claiborne
Doomtrain/GMRyujin
drm/mayberrydan
Earl Snake-Hips Tucker/Mjollnir
El_Kabong/Rocket88
Electrical Storm/silver1
Electronic Chaos/xgxlx
Elendil’s Heir/William V
Esprix/Raymond Luxury Yach-t
Eutychus/Eutychus55
Eve/Flora McFlimsey
Fern Forest/Osiris/Jinxie/Brother Rat
Ferret Herder/Denise V
Fionn/Ballybay
fisha/dafisheroo
Frank/This Years Model
Fred/thegrimspectreofreddeath
Freudian Slit/Zoggie
G.B.H. Hornswoggler/Da Ace
Gala Matrix Fire/bluethree
Gangster Octopus/Tretiak
Gazelle/Canthearya
Go You Big Red Fire Engine/Who Stole My Name?
Great Dave/BigDaddyD
GusNSpot/CatBiker
Gyrate/jr8
Happy Lendervedder/stv
Helen’s Eidolon/LaurAnge
Hello Again/rmariamp
HeyHomie/rastahomie
Hockey Monkey/pimaspinner
Hostile Dialect/fetus
II Gyan II/Gyan9
Improv Geek/Ronincyberpunk
Jenner/Devilman Palmer
jodi/jodih
Johanna/JomoMojo
kanicbird/k2dave
Kiki/Rachelle
Kilvert’s Pagan/tpayne
Kwyjibo/MaxOverride
LavenderBlue/lavenderlemon
lel/panchitaville
Liberal/Libertarian
Lionne/LunaV
Liz/chatelaine
lno/LNO
Lobsang/lobley
Lodrain/Redukter
LorieSmurf/SuperLorie
LouisB/Crystalguy
lynn73/his4ever
Marconi & Schmeese/Alice in Wonderland
Master Wang-Ka/Wang-Ka
meek/Smug
Mississippienne/Nichol Storm
MizGrand/RSSChen
Mockingbird/Hastur
Morbo/Dooku
Mr. Blue Sky/trumpy303
Mudshark/Mudshark2911
Nawth Chucka/Portia
Northern Piper/jti00
Not a Platypus/Thorny Platypus
Nzinga, Seated/Venus Hottentot
Patty O’Furniture/attrayant
Quartz/qts
Queen Bruin/The Sausage Creature
raz/roadkiller
ReallyNotAllThatBright/dutchboy208
Red Stilettos/Dr. Scarlett
Ringo/beatle
rowrrbazzle/zgystardst
Santo Rugger/Pygmy Rugger
Scissorjack/Case Sensitive
seal_cleaner/seal_clubber
ShelliBean/Rez/ellykat
Siddhartha Vicious/Elvis/Moebius
Skald the Rhymer/Fabulous Creature
Slypork/erie774
Spectre of Pithecanthropus/javaman
SPOOFE/SPOOFE BoDiddley
Stage Manager/Mikie
straight man/eustachian=/fallopian
Stuffy/stuffinb
Sunrazor/jeffrice
Tazmanian Devil/tazz999
Telperien/Harimad-sol
The Asbestos Mango/agisofia/Thea Logica
The Chao Goes Mu/CURIOUS_GEORGIE7
The Composer/iceman866
The Mad Hermit/Steelerphan
tiny ham/jarbabyj
Troy McClure SF/jjtm
TVAA/The Vorlon Ambassador’s Aide
twickster/twickster47
Una Persson/Anthracite
Uncommon Sense/whuckfistle
Urban Chic/JuanitaTech
What Exit?/jfranchi
Wile E/Tiramisu
Not in my case, I think. I didn’t do a name change - I opened an entirely new account.
In my case it was b/c I got a little too close to home for my employer, (and was outed by a different employ who happens to be a Doper), so they scolded me. I suggested I tone down any sort of insider knowledge-type posts, and change my screen name to avoid being so closely associated with being in their employ by other posters. They accepted.
Which doesn’t work too well when people keep posting “old screen name / new screen name” without checking first to see if it’s OK with the posters that did the changing.
Well, as the one who posted it first to this thread… sorry about that. However, IIRC, I found the reference in a thread you started (or posted to), so I really don’t feel all that horrible about it.
I used to be coven. When I joined my friends and I were really into quoting American Movie. Didn’t translate at all well to a public forum, and I often felt that I might be misrepresenting myself as someone a little witchy, so I switched. I rarely post and I didn’t bother making an announcement, so I don’t think anyone noticed. I feel much better now that I’ve come clean. Aaaaaaah!
Oh crap! I was being jokey and totally forgot the smiley - no apology necessary. It’s really not a big deal anymore, I was just dealing at the time with an uptight manager. Who is gone.
I wonder though if there are some legitimate reasons for someone wanting a change that would make these sorts of threads upsetting to them. Can’t think of anything right now. And I think my situation was a pretty uncommon one.
I used to be dwalin, but I kind of got tired of the name; besides, he’s really a minor character in the first book. Now I’m…another dwarf, but one who plays a much greater role.
I never bothered to say much of anything about it, apart from having it in my sig for a while.
There is a doper who had a bit of a stalker issue. Unfortunately since we’re a message board which has a good fondness for our old threads people will notice the change. Especially if people miss you and go looking to see what happened.
I changed mine because I was just too damned unimaginative when I picked my first username. I like my current username much better.
(BTW and FYI, Sal, just to be excrutiatingly nitpicky and correct, my old username William V. had a period at the end).
I used to be Cecil Adams. 
This mayn’t be what you’re shooting for, as I’m a relative newbie, but the OP was for definitive. I confess that my brief free period and early pay period was as Kenghisghan.
I used to be Aeryn Sun.
Maybe I should stop naming myself from favorite shows - they seem to get canceled.
I used to be Art Vandelay, Architect.
Eats_Crayons used to be Charmian. Sadly, she doesn’t post here any more.
Okay, the final (?) list:
80sMetalHairMaven/I_Dig_Bad_Boys
Absolute/Mister V
Aguecheek/NoLongerPatrick
Alice The Goon/trublmakr
Always Brings Pie/Purplkid_Caterer
Anaamika/Elenia28
Antigen/roxx222
Askance/Andrew T
Atreyu/Shy Ghost
Attack from the 3rd dimension/Kenghisghan
Autolycus/xabc_Keitaro/Autolycus
AwSnappity/FireUnderpantsBoobs
Badbadrubberpiggy/tamaraqueenofgoths
Batsinma Belfry/Hillbilly Queen
bbs2k/BigBabySweets2000
black rabbit/black455
BoBettie/Zette
Bosstone/BayleDemon
Boyo Jim/yojimboguy
butter pie/jinwicked
Captain Carrot/dwalin
capybara/M.K.
Chanteuse/Mayflower
chaoticbear/chaoticdonkey
Cluricaun/Ryan Mahoney
CoBa/Captain Battery Acid
ComeToTheDarkSideWeHaveCookies/honeydewgrrl
Czarcasm/Slythe
Dangermon/genie
davenportavenger/continuity eror
DeadlyAccurate/throatshot
Demo/Democritus
Dolores Reborn/Dolores Claiborne
Doomtrain/GMRyujin
drm/mayberrydan
Earl Snake-Hips Tucker/Mjollnir
Eats_Crayons/Charmian
El_Kabong/Rocket88
Electrical Storm/silver1
Electronic Chaos/xgxlx
Elendil’s Heir/William V.
Esprix/Raymond Luxury Yach-t
Eutychus/Eutychus55
Eve/Flora McFlimsey
Fern Forest/Osiris/Jinxie/Brother Rat
Ferret Herder/Denise V
Fionn/Ballybay
fisha/dafisheroo
Frank/This Years Model
Fred/thegrimspectreofreddeath
Freudian Slit/Zoggie
G.B.H. Hornswoggler/Da Ace
Gala Matrix Fire/bluethree
Gangster Octopus/Tretiak
Gazelle/Canthearya
Go You Big Red Fire Engine/Who Stole My Name?
Great Dave/BigDaddyD
GusNSpot/CatBiker
Gyrate/jr8
Happy Lendervedder/stv
Helen’s Eidolon/LaurAnge
Hello Again/rmariamp
HeyHomie/rastahomie
Hockey Monkey/pimaspinner
Hostile Dialect/fetus
II Gyan II/Gyan9
Improv Geek/Ronincyberpunk
Jenner/Devilman Palmer
jodi/jodih
Johanna/JomoMojo
kanicbird/k2dave
Kiki/Rachelle
Kilvert’s Pagan/tpayne
Kwyjibo/MaxOverride
LavenderBlue/lavenderlemon
lel/panchitaville
Liberal/Libertarian
Lionne/LunaV
Liz/chatelaine
lno/LNO
Lobsang/lobley
Lodrain/Redukter
LorieSmurf/SuperLorie
LouisB/Crystalguy
lynn73/his4ever
Marconi & Schmeese/Alice in Wonderland
Master Wang-Ka/Wang-Ka
meek/Smug
Mississippienne/Nichol Storm
MizGrand/RSSChen
Mockingbird/Hastur
Morbo/Dooku
Mr. Blue Sky/trumpy303
Mudshark/Mudshark2911
Nawth Chucka/Portia
Northern Piper/jti00
Not a Platypus/Thorny Platypus
Nzinga, Seated/Venus Hottentot
Patty O’Furniture/attrayant
Quartz/qts
Queen Bruin/The Sausage Creature
Quint/coven
raz/roadkiller
ReallyNotAllThatBright/dutchboy208
Red Stilettos/Dr. Scarlett
Ringo/beatle
rowrrbazzle/zgystardst
Santo Rugger/Pygmy Rugger
Scissorjack/Case Sensitive
seal_cleaner/seal_clubber
ShelliBean/Rez/ellykat
Siddhartha Vicious/Elvis/Moebius
Skald the Rhymer/Fabulous Creature
Slypork/erie774
Spectre of Pithecanthropus/javaman
SPOOFE/SPOOFE BoDiddley
Stage Manager/Mikie
straight man/eustachian=/fallopian
Stuffy/stuffinb
Sunrazor/jeffrice
Tazmanian Devil/tazz999
Telperien/Harimad-sol
The Asbestos Mango/agisofia/Thea Logica
The Chao Goes Mu/CURIOUS_GEORGIE7
The Composer/iceman866
The Mad Hermit/Steelerphan
The New and Improved Superman/Art Vandelay, Architect
tiny ham/jarbabyj
Troy McClure SF/jjtm
TVAA/The Vorlon Ambassador’s Aide
twickster/twickster47
Una Persson/Anthracite
Unauthorized Cinnamon/Aeryn Sun
Uncommon Sense/whuckfistle
Urban Chic/JuanitaTech
What Exit?/jfranchi
Wile E/Tiramisu
Print it out and stick it on your bulletin board.
Wait, wait, I got another one!
Mr. Cynical became Manservant Hecubus and then reverted to being Mr. Cynical again. (is he still around?)
And you didn’t take my word for it about C K Dexter Haven, huh?
You may as well add me. I joined as Beeblebrox.
Not quite final.
I originally registered under my RL name.
Bosda Di’Chi of Tricor is what I changed it to.
You are correct. There are extant threads from 2000 that have CKDextHavn in them.