I have a few ideas, though I'm sure they've been posted above, but 11 pages is a bit much to wade through

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The Society UI
As you probably noticed in the "Open Ideas" thread, I'm rather particular on my UI. So this deserves it's own section here

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1) Member Font - This needs to be changed. The white/gray text with a black border looks very bad at that size. The use of a border on such a small font actually lowers readability, rather than raising it.
2) Group Search - This simply shouldn't be present on the society tab (or friends tab really). Ideally, moving the group search tool to it's own tab, and merging the Inbox and Compose tabs to a single "Mail" tab would be a great way to go.
3) Member information - There needs to be a way to view the following information inside the society window (whether the member is online or offline): Society Rank (already shown), Career, Player Rank (aka "level"), Location (already shown, though could be expanded), Last Login, and "Notes" (see below for detail).
4) Presented Information - All that stuff above will *not* fit in the window if it remains readable, so there should be either a dropdown or a toggle that allows the user to swap between different presented info. This can be handled by "Member Info" and "Society Info" options.
4a) Member Info - This would include Name, Rank, Career, Location
4b) Society Info - This would include Name, Society Rank, Last Login, "Notes".
5) Headers - Each column of information should have headers. This would make it more of a table look than a list look, which (at least in my opinion) would be much cleaner. These headers would obviously change based on the presented information above.
6) Sorting - The ability to sort by each column would be best, simply by clicking on the appropriate header. Click to toggle between ascending and descending.
7) Online/Offline Filtering - A simple toggle that says "Show Offline Members", default is off.
Society Features
1) Customizable Ranks - Rather than 3 hard-coded ranks, the Society Leader should have the ability to create several (more than 3, but less than 10) custom ranks. The leader should then have the option to change the following aspects of these ranks: Rank Name, Rank Permissions (/soc chat, /officer chat, invite rights, mail rights, promotion/demotion rights, etc), and Rank Hierarchy.
2) Rank Hierarchy System - One place where WoW's UI fails is editing Rank Hierarchy. There should be an easy to use system in place for Society Leaders to move different ranks up and down in the list without affecting Members' current ranks. Perhaps something as "simple" as a RankID designation for each rank name (which will house all the aspects minus the hierarchy) coupled with a RankHierarchyID designation to preserve the Rank options.
3) Society Item Transfers - An easy way for society members to transfer items to each other, this can even be set with the Rank options detailed above. Now, this can be exploited by untrustworthy members fairly easily, however, it should be the responsibility of the Society Leader to set permissions and limits smartly. My vision of this would be "Drop Orders". Drop orders are basically items dropped off for x person in the society. The order would auto-send a mail to the member saying "soandso has left suchandsuch in someport for you. You can sail to the port and speak with the Auctioneer to pick it up." The item gets left on the retrieve tab. The "dropper" could set the price and all that if they wish. While similar to the AH system already in place, this could be used to guarentee a resource goes to x person in the society for y price (where y would normally be much lower than typical AH pricing).
4) "Notes" - Adding in the ability to tag notes to members. An officer and a player note would be great, but a single note is fine as well. This could be used for a multitude of reasons, and would be especially good for certain crafting specialties.
That's about all I got for now (I bet you're happy too

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