I can provide lots of examples of Kiwi Farms doxxing and harassing queer people. Whether they happen to work for Cloudflare at the time is a matter of chance, and not particularly relevant to the point.
If that doesn't work make the part you don't like illegal. Enshrine something like the "right to be forgotten" stuff into law and make them take down threads if the people they refer to don't want them up.
I know it's hard to word something like a "right to be forgotten" without making it to broad and a tool for abuse of chilling speech but it seems worth the effort if the consequences are this dire.
If you would stop derailing the conversation with unfeasible solutions.