Here's how I'd handle "release all":
Have an option in some UI menus that by default is set to "Never Allow", but that has three settings:
Release All:
Never Allow: "You cannot use the release all feature"
Confirm: "You can use the release all feature. When you do, all scrolls, gems, gold, dragonshard fragments and arrows will be auto-released, and all other items will only be released if you click a confirmation box (which will appear in the bottom right corner of the screen)"
Always Allow: "You can use the release all feature. When you do, all items in the chest can be taken by anyone. Turbine will not replace items accidentally transferred with this feature."
That way, it's the best of both worlds - those who want speed only need to ever make one change to their settings & they have speed (without security against accidents). Those who want security against accidents have a setting for them too. (Personally I'd use Confirm).