From what I have seen as of late, we have hundred of unused items in the guild bank such as food, armor, potions, materials, ect. I think it would be best to utilize these and to sell of some to interested people or parties. I am not saying we get rid of all of them, of course many people still use the food and other goods, but if we sell off some it makes way for new goods to come in and opportunities to create new items and thus increase skills and opens way for gold to flow in, while getting rid of stuff we do not use.
Myself as a master crafter in many areas, I would like to have the opportunity to make money for the guild and myself, so that I can expand our connections.
TL;DR - Sell the stuff in the guild bank and create new stuff to stockpile or sell