3) 24 hour news may be an issue of degradation but fake news perpetuated within giant tech companies is also an issue. You cannot talk about fake news without going into the politics of it.
It is an experiment. That's a good thing. Let's talk about solving Fake News in a week. If they try to ban politics on HN in a week I'll get up in arms with you.
3) perpetuated by the users of software distributed by giant tech companies
To finish up: It is an experiment.