What if they want the members to approve things too? Shouldn't the moderators not be so autocratic? What about the safety of the members of PC? Just think: if a member disagrees with a moderator's disapproval they can make their own judgment!
I say that no moderator should have such dictatorial power and control as your suggestion says. It's obvious that the plebeians always know best, so leave it be. If this were locked then anything could happen! People might start marrying their pets for all we know!!!