The BBC article (http://www.bbc.co.uk/news/technology-42755832) made the point that this system would have stopped Buzzfeed being able to make that change (to the extent they'd still rely on FB traffic):
> For instance, Buzzfeed's initial beginnings as a viral site would have almost certainly hindered its growth into a serious news organisation had it been subject to the ideas about to be put in place by Mr Zuckerberg's team.
I'm not really sure what the answer to this is - but they are really good now and would definitely have been perma-black-holed before now by many measures I can think of.