My first time on Site Stuff so not sure if this has been brought up before but, would it be possible to have a section for sensitive topics where only people with a posting history (or whatever criteria) can contribute? Not necessarily stopping posters changing their names, I know sometimes that's needed, but a section say where you need to have been registered for x amount of weeks/months? Or have posted x amount of times - just any criteria which makes it difficult for outside groups to jump on a thread to cause disruption.
Increasingly you see 'new' posters joining in on a thread with the sole motivation of derailing it - its shit on OPs who've came here for advice to then have to wade through multiple posts from (likely) incel/MRA groups.
Just a thought.