I don’t think Twitter is a great place to have such discussions (which is one reason why JK Rowling should probably back off)
Firstly the fact that you either have to either squash complex opinions into 280 characters, or start a ridiculous thread which defeats the whole micro-blogging appeal of Twitter in the first place
Secondly, it’s culturally not a place to express certain points of view, just like many other websites. Add in the fact that cancel culture is a huge thing now and even nobodies who make stupid jokes or word something badly are at risk of being hounded with real life consequences (see: Jon Ronson’s book on public shaming)... I can see why people would be afraid to publicly state their opinions
I didn't like the HP books growing up, fantasy isn’t really my genre and her writing didn’t convince me. However, I can appreciate that isn’t a popular opinion and think it’s great that she got many children interested in reading
I read The Casual Vacancy and thought it was alright
I do wonder why she’s coming out with these statements at the moment. She normally seems to be supportive of minority groups and with COVID and BLM going on it’s weird timing