Why do people want J.K Rowling to write a Harry Potter encyclopedia so badly?

because harry potter has turned into a timeless, beautiful series that will forevermore be a must-read. the die-hard fans of harry potter (like myself) are extremely sad to see the end of anything new for harry, and are clutching on to anything that could possibly extract new information. since Rowling said she will not be making any more plot-driven books for harry potter, an encyclopedia that holds everything about it is the next best thing, because Rowling might put information into it that she has never disclosed to the public. Now, i think that if everyone really loved harry potter as much as they said they did, they would just read the books again, because i've read them all 7 times at least and i still find new details that i didn't pick up in every time. i love the harry potter series so much!