This might be wishful thinking, but there's no way in hell she started an NSFW Discord just to post fan hentai. There are SO many other adult platforms and various ways to publish adult content than just OF.
I agree with you. The first day of that NSFW discord was wild, but at some point something made her want to purge it and hammer down some rules. She stopped updating her community about OF. Though I'm unsure how long the verification process is and she could just be waiting for it to go through before saying anything. There's a lot of folks in that discord acting like they only want NSFW Art, but that's far from the reality.
She felt insecure about it after she was rejected, understandable. She is having some second thoughts and has concerns what people might think. All, again, valid. If she doesnt oh well but i know her community will support her if she does