Have you used it? Have you had it used in a game you were running or playing? If so, what were the circumstances (be kind to the people involved, please, and don't out anyone for their preferences, please). I am honestly curious what it looks like "in the wild" rather than simply as a theoretical thing in a book.
I have used them and seen their use by others. Or at least an identical analog (we've tended to say 'I'm calling X card' instead of having a physical card).
As I've been rather public about, I once had my head nearly caved in in a mugging. Likewise, many of my main gaming group are veterans, some of whom have seen violent conflict )or the aftermath thereof). Others have experienced sexual violence. We each have a different threshold for realistic violence, sometimes one that changes day to day. Having a way of saying
'no I am not going to be involved with that right now' without explanation or judgment allows games that otherwise would not happen to be playable in general.
Plus some other cases with phobias, too graphic descriptions of body horror, or people forgetting that children or people unused to the group dynamic were present.
They are both presented as safety tools. They both try to find a way for people reacting badly to a scene to no longer be exposed to it. They seek the same end. They are naturally conflated. The difference I see between them is that one is telegraphing "I have a problem with topic X" -- something people might be ill at ease saying, especially to complete strangers -- while the other is trying to telegraph nothing meaningful at all, lowering the "entry barrier".
I think the latter approach might help improve adoption.
They are seeking the same end. I think the issue people are taking with it is that it is like pulling the fire alarm to clear a building so you can sweep the floors -- the goal is to clear the building so you've accomplished your goals, but it's using an emergency tool for a 'trivial' purpose. Most instances of using an emergency system are use cases where people are unlikely not to use them when needed, and/or not places where having them used trivially is deemed appropriate. Also I think there is a fear that the trivial use of these tools might give fuel to the fire of those that already treat them as a trivial endeavor/addition to gaming (the
'pat oneself on the back for growing up before bike helmets' response, as it were). If you are right, and using the emergency tool for a trivial purpose actually makes people use it in an emergency, that would be a good thing. I'm not convinced we've been presented with that case here, though.