That would be just as much a pain in the **** trying to craft. 'oh I need a bee spleen' goes to web, makes post. Wait wait wait wait, ooh reply! teleport to other city, person isn't logged in. Wait wait wait, oh here they are, hello! Yes I would like to buy your bee spleen! Trade, thanks! Hmm, now I need some Dodo boogers. goes to web, makes post....
Yeah I don't think anything other than a centralized search and buy database is going to work with the crafting system they made.
Die! Die die die. die die die die, die die. - Scarlet Briar