The thing is: I don't have a problem with my current layout (and, as I said, adding sticky shift is one more thing to configure on new machines or after a OS reinstall). Also, I've been using that key for its original purpose for some 25 years. I don't see myself learning that again too easily. But I might try to see if it sticks (pun not intended).

What surprises me are people who consider a certain key "useless" simply because they don't use it, so it should be removed/reassigned. And there's plenty of them in this thread who think that I'm doing it wrong by using the key for the exact job it was meant for.

I must admit I was among those people. I have not seen anybody using it. But then most people I have seen typing or discussing Caps are not touch-typist.