I wish to see possibility to create macro and use it in another. That would tremendously help with all those 15+ steps crafting recipes if we were able to write sth like /ac "macro 1" while making one.
Also if we were able to use macros in quick synth (like at the start of process we choose a macro to use for specific recipe) it would boost crafting a lot. I know second idea would just flood market with hq mats and they would just drop on price insanely but maybe in some way it could be applicable? Crafting 500x pots / 100x food each week just for raiding purpose can be pretty tedious task.