If the list were public they could know this in advance though, and send someone who hasn't yet been flagged and so attacks would be harder to thwart. This is o

If the list were public they could know this in advance though, and send someone who hasn't yet been flagged and so attacks would be harder to thwart. This is only hypothetical though, and given the size of the list I'm skeptical it's all that reliable to begin with.