Craft oriented, even rp'd 'crafts' such as being a tailor or seamstress, chef or a carpenter of musical instruments, and artistic characters could all benefit from something like this and in turn could add a lot to the setting via the sale and distribution of the pc's creations. Also I've noticed some very nice items in game have no description at all, so there were times I really wished I could have added one myself.
Considering how well the capability of writing letters and notes has worked out in game, I'd say this would probably work out similarly if implemented.