I Am the Facebook Algorithm and I Come to You Now, Requesting a Swift Death

What happens when you combine extensive knowledge of a user's most intimate secrets and most painful memories with the ability to algorithmically choose targeted content at will, with the intention to amorally experiment on said user? Can you cause long term psychological damage to a user? Would it be justified if this were deemed to be a form of "digital karmic revenge", also determined using social mining algorithms?

What would happen if such weapons were refined on a user across social media platforms over a multi-decade timeframe? Could you invoke self-destruction of a person intentionally?

Related (and quite a bit better):

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