2007 saw the first widespread global political campaign over social media. It was an overwhelming success. So good, everyone started doing it. So good, you can't not do it.

That opened a Pandora's box of what can be described as ideological harassment online. Again, we live in a world now in which everyone does it. It is now so pervasive, that the current generation cannot understand what it was before, and therefore cannot perceive what changed (not being nostalgic, lots of things were bad back then).

In my opinion, that explains a lot of related trends related to mental health, perceived internet addiction, even device type market share.