For myself, i've found that the point of CWs isn't always to avoid such content altogether, but to not take a closer look when i'm having a bad day, or don't want to be upset, or something along these lines. It's not a taboo, it's more like a form of media hygiene and limiting exposure when needed. Like, transphobia is definitely something that requires a CW for me, but i see transphobia every day, it's unavoidable to begin with. And it's not that i can't handle it, there's just a point where it's better for my well-being to limit exposure and not dwell on it too much. And going into a thread where it's the very topic will mean i'll get exposed to a lot of discussion about it, and have to mull it over a lot. So there's situations where i see a CW: Transphobia and don't click on the thread, but most of the time, i'll do, because discussing the subject is different from seeing a clip from Matt face the Wallsh or smth like that.

It's not that way for everybody, particularly when it comes to PTSD and forms of SV / SA, but CWs get used for all kinds of things. And often, the people who'd be happy to have a CW do not use it the way most people expect it.