I'm Sera, and this is... pretty much my life's work on one website.
While my anime list is mostly up to date, my manga list is a lot smaller than it should be, because 1. I'm a lot worse about finishing manga than anime, and I don't see the point in saying that I read one volume/chapter of a manga, and 2. I've been seriously reading manga for almost 9 years, while I really have only watched anime sporadically. So as a result of that, I honestly can't remember how much of anything I've read, or even all the things I've read. I've been trying to fill it in, because it's really incomplete, but that's just how it goes.