Bill -
I think I agree with you, but let me try to express my thoughts in a slightly different way.
As a photographer, I know and appreciate the difference between silver prints, platinum/palladium prints, kallitypes, cyanotypes, etc. And because I understand and respect the qualities inherent in those processes, and possibly also because I tend to be an anal-retentive esthete, I agree that using some kind of trickery to fake the appearance of a more complex process is undesirable.
But the situation for Joe Six-Pack is different. The average lay person doesn't know the distinctions between the various means to the common end of getting an on paper. A great example of that is the fact that for the vast majority of people today, a digital ink-jet print is fully equivalent to a print produced in a traditional chemical darkroom.
What the lay person MAY be able to discern, however, are differences in the visual and artistic impact of an image that ultimately are traceable to the technical process used to arrive at the image - tonal warmth, tonal scale, the image depth characteristic of processes in which sensitized solutions become embedded within, rather than on the surface of, the paper substrate, etc. Perceiving that these differences exist is not the same thing as recognizing or appreciating the technical processes that led to them.
Michael's comment about Tillman's obsession with quality is absolutely correct - I've seen his palladium prints, and they are breathtakingly gorgious. The reproductions in his book, while very good, can't even begin to compare with the actual prints. But images in his books aren't palladium, but through careful craftsmanship they do manage to convey an approximation of the tonalities and depth of the real images.
The original question that started this thread pertained to the problem that when scanned, the surface texture of platinum/palladium prints became dominant and detracted from the digitized version of the image. And the fact is that that is precisely why APUG exists - for many of us in this "fraternity", there is no substitue for original silver, platinum/palladium, van dyke, cyanotype, albumen, or you name it prints. Translating original images into digital equivalents is a compromise.
The point that Michael and I were making is that translating those original images into ANY other form, including ink on the pages of books and magazines, is a compromise that at best only approximates the makers original intention. And its not necessarily a matter of "faking" the image, but more of making it possible for a version of the image that conveys something of the makers emotional content to be widely available at reasonable cost. For those of us who are involved in phtography, there's a big difference, but for the ordinary man on the street, close enough is good enough.