Moderator's ID could be preserved as trade secret, IMO. The person who values the secret has to intend secrecy, and take measures to preserve the secret (basically tell on a "need to know basis" and obtain contractual agreement to not tell). As a practical matter for FR, I'm not sure of the financial damage if the "secret" is disclosed.
Careful with the blanket condemnation of lawyers. ;-)
Hey, give me some credit. I didn't trot out that tired old "50,000 lawyers at the bottom of the ocean" joke that has a beard and a cane.