I'd like to see a moderation log like on Lobste.rs . They list all the actions their moderators take and why. This includes renaming posts, deleting posts, and banning users.
Their description of the moderation log: "All moderator actions on this site are visible to everyone and the identities of those moderators are made public. While the individual actions of a moderator may cause debate, there should be no question about who the moderator was or whether they had an ulterior motive for those actions."