That's fair enough. If FB was purely what it originally was - showing updates from your own connections exclusively - then of course a measure like this would b

That's fair enough. If FB was purely what it originally was - showing updates from your own connections exclusively - then of course a measure like this would be nonsensical. Only people who were directly connected to people posting it would ever see it (and many such people would be beyond hope anyway) and there would be no need to stop any kind of content "propagating" since no content ever would.