AO3 is not social media, it's a library. Fanfic is not content, it's a hobby. Fic writers are not published authors who should stay out of fan spaces. They ARE fans. Fic readers are not clients or customers, they're fellow fans. The sooner people realise all that, the better.
VIVINOS discloses that the reason why she hasn't introduced Ivan's provider into the story yet is because the character's biological parents are actually intellectual property of another writer.
"Yeah, we're still in talks w/ singNsong about it, we want the reveal to be perfect"