Well, given how saddled with debt the place was it wouldn't be hard to argue that more activity in fact only burdens him more. It's not a sustainable or profitable place. I also don't think advertisers will be to thrilled by the activity of shit constantly being flung everywhere.
But more than that, it is a social media platform, not a shop. I think there is inherent value in the people who stay there and highlight the issues going on regarding hate speech and political manipulation, rather than they all leave. That would allow hateful people to mold the platform around a whole lot of clueless people who don't realize what is going on, and might just go along with it because they are immersed in this environment. Twitter is not made exclusively of bigots, but it could become more like that over time.
Sure there is no amount of tweets that will stop Elon Musk's mad spiral. But his reputation definitely took some hits.
As far as it compares with JK Rowling, I also think it's not the same. Say, if we were to compare, as far as engagement and community goes, I wouldn't expect anyone to drop all their friends and groups they make through their shared love of Harry Potter just because the author is awful.
If anything I'm a bit suspicious from where first came this call for complete disengagement. Because if there are no voices calling for inclusivity and respect in social media platforms and fandoms, they just become breeding grounds for hate.
introvrt2themax