It just looked like ugly wallpaper to me anyway, but I don't think she deserves a conspiracy that she's actually a good person who is victim to a health crisis.
Did black mold make her name a character "Cho Chang" without research 20 years ago?
Did black mold force her to invent a race of creatures who loved and begged to be slaves?
Did black mold make her use antisemitic stereotypes in her worldbuilding of goblins?
Did black mold help her make lycanthropy into an allegory that seems suspiciously similar to the AIDs epidemic?
Did black mold give her a pen name to publish propaganda novels about trans women who are serial killers, also years and years ago?
People are hopeful there's an excuse. There isn't one. She has always been this way, and her unchecked bigotry has led her deeper down the hole. Occams razor on this one, folks.