Was thinking it would be cool to have a chest-type item I can put in my house or the guild hall that anyone who visits can activate and see what's inside. Yes, yes, the Guild Bank plays a similar role but most of the time access to the items therein is strictly controlled, at least in WoW there were multiple 'tabs' that had their own permissions, so lower ranking members had access to less valuable gear/items.
Just though it would be a nice way to distribute unwanted/unneeded goods that my guildmates could make use of without having to flood guildchat with the dozens of furnishing plans I know.