The lost PM's problem is something that's been brought up in this section before. As far as I know, nothing's ben done about it thus far for some reason or other.
Same goes for the post moderation. I think that's something to do with the spam accounts that flooded the site recently. But again, it's something that is yet to be refined and fixed as far as us normal users go. But it's a problem that's been made aware for a while, but nothing's been done bout it yet.