Isn't there a mega-thread somewhere that this can be buried in? Say about 4728 posts down.
The last time I raised this issue, I was told that it was at the discretion of moderators and that discussion of moderator actions was verboten. Expect to see this discussion shut down pretty quickly as well - unless of course the TB members who are also moderators want to discuss it, in which case they can because they are doing so as moderators rather than TB members.
Hmm, perhaps there is something about two class of members after all?