If you read much as a kid you knew back then the books weren't well written. The stories were fun but never has Jo been a competent writer. The books are riddled with plot holes and inconsistent themes and straight up retcons because she didn't keep notes and is a hack writer. But there are actually good books with cohesive themes and messages that aren't rambling messes filled with inconsistent ideals and casually racist ignorance. The Harry Potter books are not well written, at all. She contradicts herself constantly, breaks her own world building, and half forms ideas that she abandons halfway through each book. Seriously, read any actually good author, Rowling writes like a fucking middle schooler. I have in fact read shit written by middle schoolers that was more cohesive than Jo's attempts. And this is all coming from a person that grew up with Harry, reading the books as they came out. Hell they helped me figure I was queer. But they're not well written, at all, and Jo is a monster and bigot and is responsible for killing trans kids. Be better.