Thank you for the comment @barbaarseevelien.
It does help to be reminded of what we are doing on here. What you recounted, I heard numerous times about FB...that it is a lot of trollers and haters.
This is a much better behavior...the fact that our compensation is tied to how well we play with others lifts the way people behave. This is why I think the negativity and other stuff you see on other sites is shunned.
I think it is true what you say about the financial rewards. I remember facebook being positive but slowly that changed. I think clickbait and ruthlessly advertising has also something to do with the 'decline' and there was no real way for people to curate the content. A lot of negativity takes away the fun.