Here's an article, which like the PDN piece, was cited by Colberg: The Twisted World of Cult Photographer Nobuyoshi Araki which I think argues that "smut cannot be simply recontextualized and turned in to not smut."
I think it's an interesting alternate take worth a read.
It's also a fascinating illustration of Colberg's, um, intellectual flexibility. It is also worth noting that Lone Wolf publishes a certain small amount of nude photography. Of women, by women, natch.