I will wire 10 bazillion US dollars to your account first thing in the morning if you implement this Blizzard, noone ever need know :-)
I think that my alt Scribe is currently sitting on ~800 of the lesser inks right now, the ability to trade them in would be welcome. It would be advantageous to have the ability to turn them in before the Darkmoon Faire this weekend...so that I don't have to mill another 1,000 herbs this week.
Blizzard already commented on this, they are waiting a week or two to make the change. As it will most likely happen during maintenance, you can expect it (unofficially) on the 9th.