I open HN comments and see criticisms of the articles pretty often; usually things like 'the author didn't do his research', 'the author is drawing invalid conc

I open HN comments and see criticisms of the articles pretty often; usually things like 'the author didn't do his research', 'the author is drawing invalid conclusions from bad data', 'the author is citing another page/article/resource/blog post that he doesn't seem to understand', etc. After seeing more than a few of those, I've started looking at the tone of the top few comments before reading most articles. The HN topics also tend to branch off on related (interesting) topics, which makes them often a separate article entirely (In actuality, I Cmd-Click down the page to open link, comments, link, comments, link, comments, link, comments, then start at the rightmost tab and work left.)