When I search for a topic on Chrome or any other browser, I notice that the next time I open Chrome (whether it's the next day or after 3 days), I see many related posts recommended in the recommendation section. However, despite being active on Steemit daily, I have never seen any trending Steemit posts recommended on Google. Despite many posts having high engagement and being trending topics, why don't Steemit posts appear in recommendations? This is strange.

You could also call it manipulation.

Does this mean that manipulation can be done to onboard people on Steemit or to bring in investors? (Or maybe they are being lured with rewards?) . Because apart from this, I don't see any other option.

He's got downvoted and flagged and fallen down with his reputation... For what?

I think @xpilar can answer this question better because this account is associated with their name and they are a respected personality on Steemit.