Because I have too much time on my hands...
Abaddon: Probably drunk, has a thing for younger girls and brings them to cfc for some bizarre reason.
aelf: Singapore, looks like a girl.
Ahovking: Dunno, name makes me think he's a viking.
aimeeandbeatles: Naive, bad spelling and grammar, needs to broaden her taste in music.
Ajidica: Dunno.
Alassius: Dunno.
amadeus: Right-wing Japanophile.
Arakhor: Dunno
Ayatollah: Dunno.
Azash: Fiftychatter. Gets confusing when Azash, Azale and Azza are all in fiftychat at the same time.
azzaman333: Trolls without trying.
bathsheba666: Sarcastic one-liners, Civ3 PBEMs.
bigdog5994: Dunno
Bill3000: Aspie, smart, shares his birthday with Perf.
bombshoo: Dunno. Maybe he has a bomb in his shoe?
Boundless: Abaddon's attractive girlfriend.
Brighteye: Dunno.
Camikaze: I liked him better before he was a mod.
cardgame: Young love, ponies.
carmen510: Was real immature, not sure if he's changed.
Catharsis: Absolutely hilarious, disappeared for a while.
CELTICEMPIRE: Dunno, name in allcaps can't be good though.
Cheetah: Dunno.
Cheezy the Wiz: Likes history, is a communist.
Chukchi Husky: I'm sorry. Probably a really cool guy, just doesn't give himself enough credit.
CivCube: Been here ages, don't know anything about him.
CivGeneral: Happy to play the victim.
civplayah: Dunno, probably plays civ
classical_hero: Played lots of civ mp, from Perth, unfortunately a YEC.
Colonel: In the airforce.
contre: Amusing avatar, like his posts.
Cutlass: Posts a lot, acts like an economist.
Dachs: Knows a hell of a lot about history, and is tall.
Darth_Caesar: Dunno.
Defiant47: I think he's a Nazi?
Domination3000: Extremely stubborn and difficult to reason with. Sore loser.
downtown: King of CFC.
Dreadnought: Dunno.
DroopyTofu: Dunno.
Dumanios: Don't think I've even seen this name before.
El_Machinae: Moderator, pops into fiftychat occasionally, very witty.
electric926: Dunno.
Elrohir: Has no avatar.
EnglishCrusader: Posts a lot.
Eran of Arcadia: Mormon moderator, married, should have a beard but he doesn't.
Flying Pig: Pretty cool old British army dude.
flyingchicken: Posts in All Other Games, feels like I know more about him but can't remember it.
GamezRule: Young'un, bit of a spammer.
Gary Childress: Dunno.
Glassfan: Dunno, probably really likes glass.
Huayna Capac357: Improved music taste
Hygro: Pretty cool guy, works with Whomp.
IglooDude: Kinky ex-moderator.
innonimatu: Anti-global warming leftist.
Integral: I think he's an economist?
Japanrocks12: Japanophile. Haven't seen him in ages.
Jehoshua: Dunno.
Joecoolyo: Jewfro, all glory to the hypnotoad.
JohnRM: Had a name change, and a car crash.
JollyRoger: Hilarious one-liners.
jtb1127: Dunno.
Kaiserguard: Dunno.
Kan' Sharuminar: Extremely skilled artist, Scottish.
KMRblue1027: Dunno.
Kraznaya: Dunno.
leonel: Dunno, been here ages though.
Lone Wolf: Dunno.
lopaz: Dunno.
lord_joakim: Bi-sexual Dane with long hair.
LucyDuke: Queen of fiftychat.
Mad_Man: Dunno, he's probably crazy though.
madviking: Cool guy, is at university.
MagisterCultuum: Dunno.
Mango Elephant: Gay, sarcastic, flamboyant.
Martacus: Sounds like Spartacus
mechaerik: Has two different facebook accounts.
Miles_Teg: Fiftychat, pretty funny.
Mise: British Indian, in about 500 different avatars.
MjM: Apparently he looks like me.
Narz: Has a thing for underage girls, plays chess, has a daughter.
NBAfan: Dunno, but he probably likes basketball.
NickyJ: Dommy's underling. Seems more reasonable than Dommy though.
NiRv4n4: Likes older music.
nonconformist: One of the most fantastic posters.
NYHunter: Dunno.
Owen Glyndwr: Likes the Grateful Dead, has found a girl that likes them too.
ParadigmShifter: Math dude, programmer, drunk.
ParkCungHee: Right winger?
Perfection: Is able to say something about everything.
PeteAtoms: Not sure, but I think I like his posts.
phoenix_sprite: Dunno.
PlutonianEmpire: Sheltered, has a thing for blue aliens.
Princeps: I think he had a name change ages ago?
Quackers: British.
RedRalph: Irish drunk communists.
Richard Cribb: Another communist.
rugbyLEAGUEfan: Australian, likes rugby league, was in a band with the drummer of the Vines.
Silurian: Dunno.
Skwink: Had a name change, many non-serious posts.
Smellincoffee: Civ3 modder.
Sonereal: Dunno
SouthernKing: Dunno.
SS-18_ICBM: Places utmost faith in science.
SuperBeaverInc.: Pretty sure he's awesome
Sveon: Dunno.
taillesskangaru: Aussie, needs to give himself more credit than he does.
Taniciusfox: Furry, self-proclaimed economic expert despite losing all his dad's money.
Thoughtful Thug: Used to go by a different name.
Traitorfish: Dunno.
tycoonist: Metalhead.
uat2d: Dunno.
useless: Abrasive gay dude, disliked by the moderators.
Valka D'Ur: Elanor Abernathy
Verarde: Dunno.
Virote_Considon: Awesome dude.
VRWCAgent: Impossible to dislike him even if you disagree with him.
warpus: Polish bacon, lives in Canada, played soccer as a goal keeper.
west india man: Bad facial hair.
Whiskey_Lord: Dunno
Yared: Black Swedish dude, really cool.
Zack: Shortened his name.
ZeletDude: Looks like Mango Elephant.
Zelig: Deadly serious.
Ziggy_Stardust: Seems pretty cool.
_random_: Young'un, Christian, seems pretty cool.
If I got you wrong, it's your own fault for not being memorable enough.