J.K. Rowlinged
When an author makes a whole bunch of amazing books and then decides to wipe out every good character just because they're tired of thinking.
They killed off my favorite character in the last chapter. What even was the point?
I was so excited for the final book, and it was just everyone dying in a stupid battle. Ugh.
I felt like the author just wanted to end it fast and didn't care about anyone.