Earlier quoted context omitted.
I agree that moderation is necessary, but it needs to happen at the comment level, not the post level.
HN has always been moderated at the post level, from the beginnings of the site. If it wasn't, the site would be flooded with fluffy recaps of whatever current event story was making people angriest right now, and there would be no place for stories about Linux on solderless breadboards and Latex-like math programming languages; instead, we'd get HuffPo, Buzzfeed, Pando, and ValleyWag's take on whatever the controver…
It does look a little rank when there's been heaps of "rah-rah Uber, disrupt, disrupt, disrupt" type articles in the past to have negative ones pruned.