I agree with you - it's a neat idea, though I haven't read the paper yet.

I wonder if it has explicit knowledge that they'll always remove a proper noun. Eventually the daily mail will write some article about a place causing or curing cancer, and the poor thing will break down trying to find X in X causes cancer from that corpus :)

On another note, I wonder if they could train it on Buzzfeed-esque content without changing the headlines. "You won't believe who Jeremy Clarkson punched!" -> the answer