His concern about spread of fake news is a serious problem.
Want to know the best way to deal with fake news?
Fact check it!
It's really that easy... when you hear something that sounds incredible and want to share it, wait... google it first... read an article from a reputable news source and see if it agrees with the recent news you saw on Facebook or wherever
It's super simple... if you want some practice, watch Alex Jones and google every sentence out of his mouth... if you can't catch Alex Jones in a lie every 60 seconds, you are doing it wrong
While it is totally true and reasonable, this is dealing with the problem, not with its cause.
How to fix the fake news situation? One solution comes to my mind: introduce AI censorship. AI is unbiased, it`ll conduct necessary fact checking and produce 'correct' piece of news.