If you go for moderator 1, moderator 2... make sure the number is assigned in order of when they get involved in a case (at least from the user's perspective). We've been on a forum where moderators were suddenly forced to make "mod accounts" to be "invisible" but the cover wasn't even functional. Everyone recognized the different mods after just a couple of posts. Its not invisible without some real cover.

Besides, having names visible might help weed out potential bad mods.

The rest of the ideas are plain lovely.