This isn't (just) about Nexus policy; this is something that affects the entire community.
My point isn't that it should be acceptable to be rude or that you should be apathetic about when people inevitably are. My point is that asking permission, except when actual assets are involved,
is a courtesy; it is not any kind of legal requirement. Anyone asserting any kind of "ownership" or rights over work created with the G.E.C.K. is breaking the EULA. My comment about Nexus staff possibly getting into hot water stems from this, and isn't silly at all. Only Bethesda have the right to assert rights; all it would take would be for a lawyer to decide that the existence of the Nexus' permissions widget was diluting their claim to rights in some way.
There
will always be random users who will do what they want; you can't do anything about it and it is a waste of time to try. You shouldn't let the inevitable actions of jerks be the defining characteristic of your interactions with the community, however. Ideally, we should all treat each other with the assumption that the other guy is
not a jerk! Jerkery will still happen, and in the case of more serious jerkery - where someone is publicly claiming credit for someone else's work or where actual asset plagiarism has taken place, I'm sure the hosting sites and community boards will continue to be as responsive as they have always been - that's when the file-hosting sites taking down files is exactly the right thing to do.
I think we are misunderstanding each other and fundamentally agree, ripple. What you describe is not what is happening here. In this case the Nexus is dictating a set of rules, not "the community". That the Nexus' ruleset is being interpreted as the de facto rules of the community is something that I find very disturbing. I worry that we are discouraging people from modding for fear of treading on the toes of other modders, and that the overall sense that "you should seek permission before using someone else's copyrighted material in your mod" has become "you can't release a mod that touches the same record as any other previously existing mod without explicit permission", which is completely insane.