Sadly that link is currently erroring out for me with a database error.

There is also a difference between stated policy and what actually ends up happening (not that I'm making any accusations, because I'm not). But what happens publicly isn't necessarily representative of what happens privately.

I mean, I can't contribute to it, because I have seen some source or disassembled components of Windows over the years. But excepting my public declaration of that here and now, who is to know?

Oh definitely, I choose not to speculate on that because again, its futile; it’s not really realistically possible to prove that it wasn’t done illegitimately. Clean-room reverse engineering can very well end up with indistinguishable results from just stealing code carefully.