It's often said that the admins simply only shut down a subreddit once its negative publicity is enough to start hurting the website's brand or ad revenue in some way.
If I weren't so politically burnt out right now I'd call for a Reddit boycott.
Either way this thread has reminded me to block it and delete my account because I'm done with that site after 10+ years.
To be clear I'm not trying to rail on the founders of these orgs, I can't say for sure that I'd do much better in their position, it's a business first after all.