Graywyvern attempts to obfuscate the issue by bringing in the case of C. G. Gibson in Landfall. Apparently he is ignorant of the Pacific tradition of the 'Parrot-Answer Poem' (which you may find among the works of Ono no Komachi, among others), where a rival's poem is quoted VERBATIM--with the exception of ONE WORD (occasionally, two)--this change being all the skillful perverter needs to make a complete refutation. And that, I think, was what C. G. Gibson was doing there.

NOT plagiarism.

And for that matter, Gibson exists. I have met his daughter, who tends bar in Christchurch.

K. S.