Within the next 10 years, and maybe much sooner, the vast majority of content on FB/Twitter/Reddit/LinkedIn will be completely fake. The "people" on those networks will be fake as well. Sure there are bots today, but they're not nearly as good as what I'm talking about, and they don't exist at the same scale. Once that happens, the value of those networks will rapidly deteriorate as people will seek out more authentic experiences with real people.
IMO, there's a multibillion dollar company waiting to be founded to provide authenticity verification services for humans online.
Will they? People interact with these things because they are giving the brain what it wants, not what it might need. How many people would flock to a verified minimal bias news site? How many people would embrace so many hard truths and throw off their comforting lies? How many people could even admit to themselves they were being lied to and had formed their identity around those lies?
Do people want authentic now? The evidence says no.