Keijimatsu does. how i know?
look here: exhentai.org/s/d01d99db34/1164078-83 (drew some Curly Q doing a poot)
and look here: tightslide.tumblr.com/post/157466713212/ (RoyMccloud, a big scat artist, drew one of his secondary OCs doing shit)

im sure he doesn't want too many folks to know he's pro-EFRO, not worth the risk to ask. but its there!

also, due to mental bullshit and self-loathing, he decided to fuck off from the internet again, breaking up with everyone he knew and nuking his blogs.
also, fuck Teckworks for what he done to our boy just a month and a half ago. Dumb catfucker. (wished someone drew scat of his characters out of spite of his ego)