That may b true. I just saw that today :

The Conversation

Down-ranking polarizing content lowers emotional temperature on social media – new research

A new tool lets researchers get a handle on how social media algorithms affect emotions and polarization.

Well, I certainly don't mean changing them in the way described in this article :) This research is precisely backwards - using centralized algorithms to manage people's emotional states by hiding content academics deem "polarizing". Thats true hell.