Andrew, i mod on many forums, have done for years, mainly Tech / PC type boards, some have been about PC case modifications (you know, add some lights and a window etc etc)
Ive also admin'd on various boards aswell, 1 of them p.haps the biggest tech board online with 10's of 000's of members
the point, my understanding of being a mod, is to just look after the board, remove any posts that are unacceptable to the admin of the board
and i must say, the guys here seem to do a good job, the posts that have troubled me, have been dealt with and a PM explaining it sent to me