I don't know how the relevant user is informed about the option/feature, but assuming they're aware it is a positive feature both in terms of thoughtfulness and execution.
Be interested to see the stats on how often it gets called
My ex wife did not want me to get a smartphone and, in retrospect, it was because it let me keep in closer touch with family abroad (which is the main reason I have one at all). She also got very upset when I changed the password on my desktop some years previously.
This sounds like something which you have no evidence at all for claiming.
So it does happen, contrary to what you claim.
I'm not sure why you would be the quickly dismissive of something that would seem obvious to many.
Of course, the abuser was cheating the whole time.
Why are you attacking the user instead of just focusing on the argument?
Sometimes I intend to do it, but it’s honestly usually just force of habit.
And "we need to do something for this" doesn't mean that this particular feature/button is a good idea.
Like I said, telling people to use private windows and teaching them Ctrl+W seems like a better solution to solve the same problem to me. You can have a widget with some basic tips, and you can even show the correct instructions based on the browser the person is using.
Then I saw your comment and realized I was entirely wrong about how I was thinking about this. I get it now.
I'm just glad you're not in charge of this kind of services because although that might seem like an obvious thing to you, the reality is that the people needing that information the most are the ones who are the least likely to have easy access to a personal device with Internet access.
In particular, children and women in dysfunctional, abusive relationships are not very often provided with a smartphone and a data plan by their abusers.
I agree that the shift shortcut is unlikely to be of much use, but it's just one available method in addition to the rest.