Yes, and, I think he outlines some serious issues with discourse on Reddit. I think if you strip away some of his biases you get one singular complaint:

Reddit strips nuance from conversation.

Adding nuance introduces attack vectors, complicates your argument and requires that the group as a whole be more informed in order to create compelling arguments.

It's so much easier to throw out quips and one-liners that help your world view, and obliterate comments that present constructive criticism.