I guess we’ll never know, but I think it’s a little bit of both.
If users are making money from impressions and engagement, I think they are incentivized to post content that would stir the pot so to speak.
As for the algo, I think there’s a reason why there’s the “if it bleeds, it leads” adage. I consider Twitter the modern day television.
Life got much better for me after I stopped watching the news. I’m bullish that the same will be true for leaving Twitter. 🤙