I highly promote the some ideas of better Guild Halls which would increase Guild experiences.
1.Add a Bulletin Board so Officers and Leaders can direct members and let them know of planned events without the need of wasteful and tiresome private messaging of each member.
2.Add a Mineral Storage unit that would pay guild members like it would at the Mine Company for adding to Gates. But in this exchange would pay the players and Give the Mineral to Leaders so they can "manipulate" gates for the betterment of their needs.
3.Add a NPC which will hold items to it and sell them at a directed price to other members of that Guild Hall, which will then pay back to the member that added the item. It might be useful to tax that payment and send a small % to the Hall Owner so they can use it to improve their guild's experience.
4.Add a storage unit or lockers for members so that they can pool items for free with options set by Guild Hall officers/owners.
5. Why not just enable halls with the choice of Hall editing to add things like this, heck if you want to be greedy about it make it so that they have to pay to have these thing enable! It would at the least give guilds a goal to achieve.
I would love to see an addition where guilds could pool materials and made them accessible to all members.