The levels of fakery, psychopathic behaviour, astroturfing, psyops and power modding is off the charts and that's just the stuff that's been documented.

I would argue that it's a typical internet behavior. I'm a bit older, still remembering forums era. It was all the same, people don't change.
Reddit stands out to me as an even bigger echo chamber, because of the downvoting system.
If you don't agree with the majority, your comment/post will be rendered invisible by downvotes. It has also much greater bearing on impressionable minds of young people.
You get rewarded with points for "good behavior" and punished for "bad behavior".
And now with censorship that comes from above (actual reddit admins), we can't even have our own communities, where you don't get downvoted automatically to speak slightly negative about certain topics.