I don't think any company should take on the role of parenting (presumably) grown ups, or worse yet children. I don't appreciate the idea that because an individual parent might teach their children morals and the social contract (nevermind the freedom individual parents have to raise their children according to their own subtle ethical codes) that it would be appropriate for large internet services to do the same for their users with machine learning.

It should remain with the people to argue with each other and change their views, not with black box magic woven into the communication medium.