I’ve seen people talk about actors and artists that had a terrible time.
My own would be Anne Rice. She wrote Interview with the Vampire after her young daughter died of Leukemia. Then her husband suddenly died of a brain hemorrhage. I suspect her Christian, anti-fanfic phase was a result of mental illness and manipulation from the publishers, although I don’t think she ever apologized.
Yeah the unfortunate truth is that most people who have the…how shall I phrase it? Gumption? Force of will? Personality size? To become a successful artist and navigate the hurdles that stand in the way of that probably also have some glaring personality flaws in the package as well. Is it even possible gor an individual to achieve success at such a scale that ones work becomes widely known without having some skeletons in your closet? (Or shamelessly on display as in Rowling’s case?)