I don't know if it's in the planning of the webnovel, but I think it would be nice to have a way to mark chapters or texts in the APP, on the reader's side and maybe for the authors, to add notes in those marks with my opinions and problems that I found and an area where I can see these notes specific to a novel, this would help a lot when making an evaluation, because when the novel is too long, the reader misses a lot of important information that these notes would help to remember.
Bookmark Update idea.