Banned stuff

19New_Shiki_Nanaya - Broken
abe - NSFW content
Adolf Hitler - Potential to offend some viewers + Twitch TOS
AfterImage-attack-test - Broken (what even is this thing?)
Angelica-sama - Lewd content, decision made to ban completely instead of ban from exhibs because especially raunchy cut-ins and overall boring to watch
ayuayu - Broken
Azathoth - Broken
bigrigs - Broken
Brook - [1]
Byakko - Broken
Carmelita - Made viewers uncomfortable, was never intended to be added (was downloaded to check out because of Holn AI patch, somehow debuted onto the main roster? Was banned before placing)
Chopper - [1]
Combat Echizen - NSFW content (?), Jor8a made a SFW patch for this one but it was never added
Cyborg Franky - [1]
Dank Ryu - Broken?
Driver - Removed at author's request (it's an old shame)
DSRugal - Broken, exists on the roster as Distant Land Rugal 2nd (?), which is untiered
DX Machina - Broken
God Usopp - [1]
Gordeau (old) - Removed at author's request?
H-Tenshi - Broken
Hyper_Zak - Broken
Inogashira Goro - NSFW content?
Ice-Oro-Mizuchi - Broken
Jigglypuff - Original author complained about the AI patch, character was removed in response (the AI patch remains private)
Josuke Joestar - [1]
Jumbo Elephant - Made viewers uncomfortable
Kurumayu - Not strictly broken but crashed/timed out a lot
Luffy - [1]
Lugia - Made users uncomfortable (and it would have ended up in F anyway)
Mai HD - NSFW content
Mewtwo 2nd - Broken? (Looking at the stats it's probably not a very quality character anyway)
Moeou-Kyouko - Broken
Nami - [1]
Neo Zekrom Mk2 - Broken/Buggy mess that's unfun to watch (?)
Omega Adolf Hitler - Potential to offend some viewers + Twitch TOS
Oni-Miko Sanae - Broken
Oni-Miko Z-R - Broken
Osama Bin Laden - Potential to offend some viewers + Twitch TOS
Palette Changer - Potential to make for some very boring exhibs + could acess banned palettes + it's more efficient to test on your own hardware anyway outside of single palette tests
R-Suika - Broken
R-Suika Oyahemkoumae - Broken
S-Ingrid - Removed at author's request?
Sanji Vinsmoke - [1]
Stefan - Potential to offend some viewers + Twitch TOS
Stretchy Limbs Mk CDXX - Ultimate Pound - April Fools joke thing
Super Mecha Geonitz v2 - Broken
Taupy - Removed at author's request?
Ujyou Nanaya - Broken
White Mage - Broken, exists on the roster as ??? Mage (?)
YOUR SOUL IS MAYAN! - April Fools joke thing
Zoro - [1]

[1] The author of these characters threw a hissy fit about their characters being on the site, so all of them were banned shortly after.