I think the characters in the books are really a combination of different versions of themselves. It's just that when you release the books to a fandom made of so many people, it's like a prism and characters breakdown into rainbow interpretations, if that makes sense.

That makes all the sense. And even if some of these interpretations will be "less authorised" after Book 7, I believe we will still have a lot of different views on the characters. Which is great, but also exasperating. As life itself!