RE: "What's This?" in Describe submenu

[Drew Adams]

        What is the purpose of the "What's This?" entry in the
        Describe submenu of the Help menu?  The only difference to the
        "Describe Key..." entry beneath is that the latter is bound
        to `describe-key-1' which is not defined anywhere.

(RMS:)
    A discussion in November 2002, based on noting that Windows menus have
    a "What's This" feature, concluded that (present and former) Windows
    users would recognize the name "What's This" and know what to do with
    it.  So it would help them.

    I have never been a Windows user, so I can't judge for myself.
    Do those here with Windows experience agree that that menu item
    will be understood by many users?

I can't speak for other Windows users, and I'm not very knowledgeable about
Windows, but I do use it.

I think Luc's solution is best: Have a single menu item (not two that do the
same thing - that's crazy), called "Describe Key or Menu Item".

I don't think this is the kind of thing (naming the describe-key menu item
What's This) that is meant, when people complain that Emacs could be
friendlier to newbies coming from the Windows world. If someone is looking
for help on a key or a menu item, he will have no problem recognizing
"Describe Key or Menu Item" - it is in fact much clearer than "What's
This?".