Earlier quoted context omitted.
If you've ever had trauma, especially recent, you'll appreciate well done content warnings. You don't want the dramatic plot twist to happen to be exactly the topic you've been trying to avoid so that you can slowly get better. If you've experienced a certain kind of trauma, it's not a matter willpower. It involves a loss of control over one's emotional response and thoughts which can be triggered by things that rela…
The problem is they are explicitly arguing that all of our best science is that trigger warnings are counter productive for getting better. Just a quick google search of 'scientific support for trigger warnings' will get you all sorts of meta analysis, RCT results, etc. on this. At best they don't seem to actually do anything, and at worst, they actively impede your ability to get better. That doesn't mean it's a mat…
Exposure and Response Prevention therapy works. You will never get fully well without exposure. However, it requires that you find stimulus of a magnitude that makes you uncomfortable, but doesn't send you outright spiraling. You need to keep steady while experiencing it for a while.
Content warnings give you the ability to estimate what intensity of negative stimulus you will experience, and this is important when dealing with actual triggers.
Not everyone is yet at the phase where they can handle a certain level of exposure. For some unfortunate cases it takes a long time to be well enough to start being able to handle exposure.
That being said, I do think content warnings need to be specific, not generic. The most useful ones are spoilers, not generic messages to put you on guard. Careful Ao3 authors do a better job at this than most games. There are technical solutions that allow interested parties to get this information without having to spoil the default audience, but we live in a busy world that has a lot of things to care about other than this.