We may need a North American historian for this!
I, too, tried to locate where these Odinists were pulling the phrase “caluminiating, misrepresenting, and traducing” from, but it took me in a direction I felt I had to ask Bridgett to comment on (and so I do so right now). It seems that the Canadian Parliament a hundred years ago was arguing over someone caluminiating, misrepresenting and traducing AND, boy, oh boy was Alexander Hamilton angry about it (not the same instance of caluminating, misrepresenting, and traducing, but a different one). Apparently this used to be quite a popular pastime centuries ago, but has now fallen by the wayside as a way to pass the political time (not the acts themselves, but the words used to describe them).
The whole thing strikes me as silly. No, Beowulf wasn’t black. But Cassiopeia was and you don’t hear about anyone sending threatening letters to the folks remaking Clash of the Titans, do you?