In addition to being a world-class novelist (insert snort here), I have a whole secret life as a huge Harry Potter fan. Of course, it started with the children, reading them chapters every night before they went to bed, and then it segued into meeting some very lovely women who were also enthralled by this universe and have become my dearest friends. We are spread across the country but have bonds that have now extended beyond Harry and his pals. Anyway, there have always been issues with the Potter 'Verse, but as so often with people you admire, you tend to ignore that stuff and focus on what enthralled you. To be clear, I didn't love her writing. I'm not going to go into why I wasn't thrilled by it, because it doesn't really matter aside from my usual cry of: Where's the frigging editor! I'm digressing. What I loved was that I had found a fun world that I could play in--something that people who scorn fandom really do not get at all, which is that ability to still be able to play even though your hair is going gray. Most importantly, I found my tribe, ma soeurs, that I have yet to find in my suburb, even though I've lived here over twenty-five years.
As the Potter 'Verse began to wind up, it became harder and harder to ignore all those, shall we say, issues that were sort of hidden by the fantastic world building. The latest revelation--boy, I bet she regrets being on social media--is the final straw for me. Your mileage may differ. I got some wonderful friendships out of my experience with her world so I'm not left with any regrets. But now that the floods have come and she has no choice but to hike up her writing pants and reveal her clay hooves, I can sigh and mourn a world that I used to love, but one I can now walk away from without a backward glance.
This article spells out the trajectory of her fall from my grace. This is behind a pay wall, but I think you get to read three articles/month free: https://www.thecut.com/article/who-did-j-k-rowling-become.html.