Earlier quoted context omitted.
When it comes from corporations, I'm with you: nothing is genuine, everything is carefully manufactured to elicit an emotion (to buy and consume). But from individuals? Sure, there's astroturfing, but there's also genuine messages with no ulterior motives. Or do you think everyone posting here on HN has ulterior motives?
I think it all comes down to what your definition of authenticity is and acknowledging that the vast majority of social media behavior is learned to elicit some sort of reaction and not to necessarily replicate your real-life behavior and mannerisms. As far as HN goes, I find myself posting for upvotes sometimes instead of having the more nuanced conversation. It’s why I typically abandon my account around 2-3k upvot…
I’ve done the same thing about three times. My rough limit is 5k. It’s time. I think HN is better than many forums but posting for karma is a motivation everywhere it is possible.