Most forums that I've used pick moderators carefully.
It needs to be people who spend a lot of time on the forum, and also who have been very non-confrontational in threads already and maybe even have tried to pour oil on the waters of arguments already.
This would involve lots of work for RW's paid staff at first, but as time goes on, the volunteers will pick more moderators. Perhaps RW would be prepared to give them some freebies as a sweetner (must be plenty of goodies hanging round the office that have been sent to you for review).