Hello everyone. I just went through all of these. I'm sorry we didn't get to this sooner.
I have a list below of all of the people who posted but did NOT get a change. The formatting is terrible, and I may come back to change it later, but for now I really need a break.
I listed it by your current + requested, followed by some notes or copy/paste of the last time you got your name change. Some things to note:
1. Changes won't be done for currently banned users
2. If your name was changed in the past 2 years, you will not get one now.
3. If the name was taken, I listed whether or not the user is normal user (searchable in member list) or if it's an account with type of "Awaiting email confirmation" (not searchable in member list).
If you think I made a mistake, please send me a PM.
EDIT 6/9/2014
Since I tried searching up member names on the member list but got no results, even though the OP said you could do that, I wanted to check with staff to see if there was some search filter or whatever that I was missing or didn't know about. Turns out the setting that would show banned + email users in the member list was actually off. It is now on and those users show up in the member list.
I felt that since this was our mistake, I am willing to change usernames for those who did not get a change because a banned user or a user awaiting email conf already existed with that name. I wouldn't suggest asking the other admins, as they will probably just tell you to wait for the next thread.
Please send me a new username and I'll change it for you as soon as I can.
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Current Username: Cloneblazer12
New Username: Clone™
Banned
Current Username: SilentReaper
New Username: Silent™
5th May 2013; Ellie Old Value New Value
User Name bictac SilentReaper
Current Username: The Imposter
New Username: Karp™
12th May 2012; Ellie Old Value New Value
User Name magikarprules The Imposter
Current Username: Mijumaru_Fan
New Username: Gareth
Banned
Current Username: Forsaken Greninja
New Username: Twilight Sparkle
18th January 2014; Kirby Old Value New Value
User Name Shinedown Gracer Abusoru Zoroāku Forsaken Greninja
25th May 2013; Ellie Old Value New Value
User Name Cobali Shinedown Gracer Abusoru Zoroāku
Current Username: Acquiescence
New Username: Administrator
-- Inappropriate username. There would be users thinking you are staff.
Current Username: Rairyan
New Username: Naoto
Username already taken. User awaiting email confirmation.. Jan 2014 join date.
Current Username: James Bondage
New Username: Joel1980
30th November 2012; Ellie Old Value New Value
User Name jeyre80 James Bondage
Current Username: Victini223
New Username: Typhlosion157
Username already taken. User awaiting email confirmation.. 2009 join date
Current Username: Aesir God
New Username: Kotoko
Username taken. Reg user from 2008
Current Username: DreamTheater
New Username: Victreebel
Username taken. User awaiting email conf. 2013 join date.
Current Username: Doryuzu
New Username: Tyrunt
1st December 2012; Ellie Old Value New Value
User Name gotpika Doryuzu
Current Username: Hakallowin
New Username: Yellow De Viridian Grove
9th July 2013; Yami Ron Old Value New Value
User Name Yellow de Viridian Grove Hakallowin
30th November 2012; Ellie Old Value New Value
User Name Hax_R_Us Yellow de Viridian Grove
12th May 2012; Ellie Old Value New Value
User Name Kale12312 Hax_R_Us
Current Username: IrisAndDawn
New Username: AshAndSerena
1st December 2012; Ellie Old Value New Value
User Name PokemonFreak2011 IrisAndDawn
Current Username: Jets
New Username: Utopia
Username taken. User awaiting email conf. 2010 join date.
Current Username: Steelrush
New Username: King Jalorda
Banned
Current Username: Starlightt
New Username: VictiniStar
18th January 2014; Kirby Old Value New Value
User Name ShiningStarr Starlightt
Current Username: KyuremFreeze
New Username: Basil
Username taken. Normal user. Join date 2006
Current Username: Geovanicaon
New Username: DeMolay145
1st December 2012; Ellie Old Value New Value
User Name geovanicaon Geovanicaon
Current Username: Nightmare Fuel
New Username: Cucumber Walrus
28th November 2013; Ellie Old Value New Value
User Name Volcanic Toxic Nightmare Fuel
9th July 2013; Yami Ron Old Value New Value
User Name Highway Hero Volcanic Toxic
13th May 2012; Ellie Old Value New Value
User Name Shinykrookodile Highway Hero
Current Username: Imma Agito
New Username: Agito-Desu
9th July 2013; Yami Ron Old Value New Value
User Name Agito97 Imma Agito
Current Username: Autis-misc
New Username: YoshinoVA
30th November 2012; Ellie Old Value New Value
User Name h8on-me Autis-misc
Current Username: Yuppirox
New Username: Togekisse
12th May 2012; Ellie Old Value New Value
Current Username: PokemonJesus123
New Username: PokémonJesus
User Name pokefan#493 Yuppirox
Username taken. Normal user. Join date 2012
Current Username: #chelloressurection
New Username: Chello
13th May 2012; Ellie Old Value New Value
User Name chellochello #chelloressurection
Current username: Seraphina
New username: Kokonoe
Username taken. Normal user. Join date 2012
Current Name:SirBlazikeen
New One:RyIsBored
Request time over on May 1st but posted May 2nd. Regardless, last name change was too recent.
1st December 2012; Ellie Old Value New Value
User Name rgaveglia SirBlazikeen