I had the same concern, i.e., moving threads to a graveyard type forum. I was thinking perhaps the code could be changed so that if the thread was moved to (whatever keyword you have for this type forum) the members would receive a different PM -- one that said something like "This post was removed because . . ." and not list where it was removed to. Of course I don't know PHP, so I have no idea if this would be hard or not.
