at first, bethnor, i'd like to thank you for defining my tries in designing as art.bethnor wrote: i have seen both yours, gachepapier and grizzlyman's, designs and works, and i have bad news for you. your designs are also works of art with a unique perspective. your posts seem to imply then, that eric's work is somehow sacred and should not be diagrammed, while the "trash" that you (and other designers, like kamiya, komatsu, lang, montroll, etc., etc.) have created is not so sacred and therefore can be.
i wouldn't have published any pictures of them, if i weren't satisfied with their outcome. but, if i see something special in the work of master joisel there's really no reason to impute a devaluation of other origami masters or students, too.
on the contrary - i lift my hat for everyone who takes time and troubles to create something new and may be unique. i'm impressed by work and style of master dinh as well as i like the designs of donya or mikiller - please excuse me not listing the names of the countless creatives beside ...
somebody has once said "a new model becomes origami just when it's folded by other people than the author". for my own little pieces i feel something similar. the geisha for instance got a new glance to me when "she" was folded by a handful members of the last middle-german-origami-day ... it makes me happy seing others folding my design with fun and success.
this topic is about the work of a dead man - unfortunately.
so, if master joisel didn't diagram most of his models himself he probably had a reason for that. how many steps would a character from the "lord of the rings"-series have if one should draw an instruction for it?! a joiner or a woodcarver usually works just on a project without sketching any instruction for it, except some personal hints on material or process.
i suppose there's a connection between your definition of origami (profession versus diversion) and the productivity regarding to diagrams.
eric joisel made his livelihood from origami as an art and i don't think it really profitable to sell a book full of neverending instructions. neither a picasso nor a rodin got his money to live with from selling instructions on how to paint or sculpture but from creating art and getting paid for that.
as a summary let me hold on to the fact that i'd appreciate everything drawn or written by monsieur joisel himself or at least with his permission.