Thing is when SE increased a stack size of something before (think it was arrows or something) they didn't increase the yield from crafting it, and as you know, with the AH it's either 1 or a full stack. So crafters had to start crafting 99 of an item instead of 12, the amount of supplies they needed to carry was ridiculous so they started losing money crafting that item so they stopped crafting them. So if askin for meds stack size to increase, make sure to ask for crafting yields to increase as well or you'll never see your meds again.