Well, I prefer a public marker rather than PM when a thread is moved, because that way all onlookers know what happened to the thread.
But I would NOT want users automatically notified that their post/thread was killed (i.e. moved out of view), via PM OR via marker, cuz it would be an admin nightmare to handle all the complaints (especially on real busy boards).
If I want to notify a poster of a deletion, it's easy enough to do so. The program shouldn't force that notification, it's too delicate an issue.
Just MHO....
JIM