Digital BW, The Print

I've been reading this thread with interest. I don't understand how
over-saturating colors, adding noise, combining parts of more than one
image, etc. are any different than cross-processing film, developing for
grain, solarizing, bleaching, intensifying, etc.  These are all accepted
darkroom practices.  Combining image elements by double exposing or
double printing are standard procedure.  Why should Photoshop work be
treated differently?  The image you end up with should be judged on its
visual appeal, not by how you got there.  A bad Photoshop image is just
bad, as is a bad darkroom print.  Thanks --- John.