I suppose a more appropriate term of phrase would've been "I'd heard anecdotally...", but I agree I was lazy with my original reply. I appreciate the feedback.
Also the bots have not invaded HN, which is a truly massive distinction.
A simple thought exercise for me is "Which of these two comments is more Reddit?" - I'd say the one that came with curiosity is HN, the one that bats around half truths combatively and invoking Reddit isn't.
I think this is probably true of any online community. I’d wager that an online community needs more users to grow and be sustainable, and more users inevitably means more content, and more content means less _high-quality_ content overall.