The one thing different about HN is that if you even slightly start to get overly negative on a post, you are downvoted into oblivion, and nobody sees what you've written.
So I'm really confused, Zed is upset that things that are negative are written about him (and I can appreciate that, who wouldn't be upset when negative things are written about them) - but the one place he criticizes, happens to be the one place on the internet (that I'm familiar with), where slanderous, objectionable, heck, off tone comments are censored by the community.
Because that's what I love about HN - the community keeps the tone civil, reasonably polite, and holds commentators accountable for their contributions, to the point of hell banning anybody who does draw too much ire.
I think Zed's criticism is a little off base this time.