I'm not a fan of trigger warnings, or I suppose they're called content warnings now.

They're likely to chill expression, and some studies show someone might feel *more* distress, if they view content after having seen a CW.

Even if someone doesn't feel more distress, it doesn't appear to reduce distress.

https://www.psychologytoday.com/us/blog/brainstorm/201904/do-trigger-warnings-actually-work