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Facebook's opaque blend of personalized algos and editorial decision-making means it can never be truly pinned down on what it shows you

How are you so sure [1] is promoted? That would be a HUGE scandal if it was. IMO, bigger than this trending topics issue.

Hey, there isn't any way for me to be sure -- after some digging -- looks like a "sponsored" label is necessary [0] -- i've amended my comment.