A suggestion could be that there could be a few "global moderators" - which are able to edit/delete messages that may need it (and not have to wait for the main moderator or Fencer to get on to deal with it.)

At the same time, there should be someway to track what the global moderators do that way if there are problems, it can be tracked.

(For example - make a "bad stuff" board which can only be seen by Fencer, and whenever a moderator edits or deletes a message, it first gets copied to the "bad stuff" folder with the information of who deleted/edited which messages. That way, if a another moderator gets too big of a head, they can be tracked and delt with.