I've noticed over the few years that I've participated on Stack Exchange websites that moderators and moderation behavior in general is rather secretive, in that moderators take action with little or no explanation. While this has been remedied a bit with explanation boxes detailing why a thread was closed or moved, there are still plenty of actions being taken that leave no paper trail. For example, in a closed topic that I was participating in, I asked in a comment why my answer was still being down voted. I return a day or two later to find my comment was gone. Why was it removed? I don't know. And I can't find out.
I'm not upset that my comment was removed, I am upset that action was taken with NO communication routed back to me. If my question was removed because of some specific undesirable quality, then I'd like to know that and what policy it violates. But nothing was provided. That in itself can create bitter, rebellious users, which leads to trolls, ranters, and other detestable behavior.
My feature request is this: moderators regardless of rank should always have to provide an explanation for any action they take that affects a user or group of users, and that explanation should be routed to those who are affected by said actions.