I'm a librarian who loves anime, manga, and reading a wide variety of genres.
Hmm. A friend of mine linked to a page with a collection of #TenThingsNotToSayToAWriter tweets, and one of them mentioned questions about when the person was going to write original stories, rather than fanfic. I thought the name sounded familiar, so I looked her up. In my opinion, if you're going to sell your P2P fanfic, you shouldn't complain about people wondering when you're going to write something original.
(Yes, I still hate that P2P fanfic is a thing. I will hate it forever.)