Trusted auditor

Who is a trusted auditor for Consumerium's content wiki? How do we know when to believe the instructional capital we have been provided by Consumerium:contributors? What other user roles must support auditors?

This function is so important, betting against the auditor finding problems might have to be supported directly, so there is maximum incentive for auditors to find all problems, and for trolls to keep maximum eye on the auditors.