mlinksva, no opinion on Nonviolent Communication yet (first time I've taken notice). Largely in agreement with the other points you make.

Re: the first point, I'm curious which modes of communication/production you see as being in most need of acquiring more of a wikinature. The prime candidate that comes to mind ATM are political commentary fora. The question also forces me to think about the cultural spread and origin of this "weird combination of moral duty and appeal to authority" (very nicely put). I.e. I wonder to what degree the moral duty part spans cultures and when it originated (mostly in the context of works of opinion, if you'll excuse this kind of categorization).

Occasionally I've toyed with the idea that the "extremist" license position of "you do not have to preserve visible attribution, but you lose license if you falsely claim authorship of this work" has some merit (non-visible attribution being a practical issue serving purposes akin to the DCO). But it doesn't seem something worth investigating in the current historical context.