Well, you are the manager and your statement speaks for itself as far as what you expect from the participants you manage, no?  A lot of those members are deathly afraid of losing a spot in a campaign or pissing off a campaign manager, so they'll avoid doing what you were so outraged about even if you didn't explicitly tell them to.  Doubt me?  Remember lightlord's campaigns and his failure to pay the participants?  Very few of them even said a word about it, and there were even some who'd defend him in spite of them being in the process of being fucked over.  Just saying that as a campaign manager, even a statement that doesn't include any new requirements might very well do so simply because of the power they wield.