I've been leveling JC on TWoW Ambershire, CapyWoW Eversong Woods and now here on OctoWoW N'Zoth and there is an annoyance with the JC profession - Unique BoE craftable items.
Shadowforged Eye a low, level 15 trinket, is very strong for its level and you used to be able to have 2 of them. The MoA (Mysteries of Azeroth) team decided to make it unique instead so players could only wear one but this made it a NIGHTMARE for the crafter making it. In order to make a batch of them to sell you now have to make one, go to the Ah, post it, run back to the forge, make another and rinse and repeat. If you have one equipped you also would have to vendor the one you're wearing, do the crafting and then buy it back off the vendor before you continued leveling. The same issue applies to the epic Grail of Forgotten Memories.
I propose if the dev team would be able to make all of these, and any crafted item across any profession for that matter that would apply, "Unique-Equipped" instead of Unique. This will still not allow players to wear more than one but will also allow crafters to comfortable make batches of them to post on the AH. Most raid items are even Unique-Equipped like the Quick Strike Ring. No crafting item should be Unique unless in a very rare occasion that it is a BoP item that cannot be sold.
If you can sell it, just make it Unique-Equipped to allow players to craft multiple to level the profession and comfortably be able to post on the AH