Solution
How about a way to be able to poke the administrator or any other staff member from within the post to let them now their attention is needed? Just like you already can Report a Post. Just press a link and a popup... pops up... where you can select a person from your Staff that you are addressing in that specific post. Then this staff member will receive an automatic PM or maybe even better (trying to avoid another discussion outlet through PM): an alert... alerting her/him of this post that needs her/his immediate attention.
Next to `Moderation queue:0´ ´Reported Items:6` XF could display `Attention needed:3' or something like that.
This way we don't have go through all the hassle to manually PM a Moderator or put (repeat...) something inside the `To-do Webmaster´ forum in yet another new thread to get somebodies (much needed) attention. We can leave everything, the whole workprocess concentrated, in one single thread/user discussion thread.
(I am not sure about the implementation above, but I definitely need some kind of solution)