[pbalau]

Sorry, but you come out terrible "naive".

> On what basis are you claiming that that most teams at FB are optimising the product for well being as opposed to ‘engagement’ (addiction)? Do you have first hand knowledge? Do you know the people involved? Do you have citations?

OP answers this in his first paragraph.

> bla bla I left facebook bla bla

You are arguing that "the algorithm" didn't read your mind and figured out you are actually "mad" at your friend, not simply interacting.

ps: sentiment out of bodies of text is not a terrible old thing, is fairly new.