Fapnon is, duh, a subtrope of Fanon. Lemon/Rule34/Hentai/whatever fanon has, IMHO, very specific tropes. As a random example, any lemon (I know of) with Vampirella and Pantha declares them to be a lesbian pair even although canon shoots this down. (There are more fanon rules than just who gets shipped - just want to start the discussion. Feel free to extend and elaborate, it's just a raw idea.)
Five hats means that five tropers think it is ready to publish.
You are saying that you think this draft is ready to be published. That means the description is not ambiguous,
it doesn't duplicate an existing trope, there are at least three examples, and the title makes sense.