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> Microsoft has historically been one of the leaders on the wrong side of this one

Objective-C ahem nil messaging...

Objective-C is an Apple thingie :)

By way of NeXTSTEP

NeXT certainly used it extensively but they didn't invent it. Originally developed by Brad Cox and Tom Love in the early 1980s, per !w.

Yes and thus I dispute that Microsoft leads on this front :P