Either I misunderstand what you're trying to say or I don't see the problem with losing these campaigns. If a campaign is unable to uphold the Signature Campaign guidelines, then what exactly is the issue with them moving off-site? Unless you mean to say the management of the campaign will be taken off-site and the participants will remain here.

It would be interesting if there was some kind of a process that would determine who can appropriately manage a campaign, sort of like there is a process that determines which trust values appear by default. This of course leaves bias as a part of the equation and means we'll have to hammer out some criteria. Done properly though, I don't think it would be too terrible to enforce, sort of like DT is somewhat self-sufficient (at least, that's the goal).