Social media now is very different from social media 10 years ago. Back then it was about social interaction with friend, peers, now it's about advertisement, maximizing engagement.

"Algorithms that track user engagement to prioritize what is shown tend to favor content that spurs negative emotions like anger and outrage. Overall, most online misinformation originates from a small minority of “superspreaders,” but social media amplifies their reach and influence."

https://www.apa.org/topics/journalism-facts/how-why-misinfor...