Alex should probably answer for clarity's sake, but as I understand things, threads from public forums can be removed to the Eratosphericals area where they would appear where "There are no posts in this forum" now appears. Then only people with the appropriate security clearance will see it.
As for the Dear Mod and Admin threads -- I think that will cut down on PMs for mods and admins when there is an issue. It will also ensure that communications with mods will be accessibel to the whole staff, and make lodging complaints easier.
Alex, I cross-posted with you. Question: if warranted, appropriate, and agreed, would Admins be able to grant another member access to a given member's complaint thread.