[happytoexplain]

Not by colloquial usage of the term, which is often (and in this case) limited to the subset of larger global human-content firehoses where the problems inherent to that dynamic become more dramatic, e.g. Twitter, Facebook, shorts feeds, things like Instagram and Reddit maybe, etc.

[LexiMax]

Hacker News is Reddit with tone policing and a nuclear downvote button.

The only difference is scale, and with the increasing flood of bot users and throwaway alt accounts, that's starting to matter less and less.

[beAbU]

HN is just as much an echo chamber as any facebook group or subreddit. You are making a mistake if you think you are immune from groupthink and herd mentality by limiting your online discourse to this platform only.