And also because negativity is seen as very negative! This is due to the positivity obligation whatever you think or feel. It's forbidden to criticize. But in the long run, it leads to toxic positivity, prosaic thinking where emotions are taking over critical thinking.

On the top of that, here on Medium, the zone for comment is excessively squeezed. Imho, It doesn't favored argumentation, like on web forums.

Thanks for the article