I specifically stated that I could not find any admin action that could be taken by any admin that could be sued upon without the complatintant being laughed out of the court room, but we're talking about those situations where the case goes before "The one judge in the world who would hear it".
Just because the judge is willing to hear the case doesn't mean it stands any chance of being successful. That's all irrelevant though - the question is about the WMF protecting admins. If the WMF were to have a policy of protecting admins, what would that policy say?