It's tempting to think of Facebook as omniscient, but I'm not sure how precisely it can be measured. Economically, yes, maybe. But morally?
Remember, the Timnit controversy ended up with letters from congress to Google's CEO. In bigcos, not everyone forecasts everything.
I wish I'd thought of a better word to use than "morally," though, since it didn't quite capture what I meant to say. I meant, people being upset about their actions is hard to quantify.
What can still happen is that the campaign backfires so quickly that hey don't have time to react. I don't know their reaction time, but they've been doing mood manipulation for long enough to think it's short.
I'm legitimately concerned it might be, if you read between the lines: https://twitter.com/RepYvetteClarke/status/13392973588158341...