You're saying this on a website that I need to manually zoom in to 200% in order to remotely read the text.
In my opinion, HN and most websites, shouldn't be setting a baseline font size at all (least of all in pixels). Medium/default should be the baseline then large/larger etc should be used as-needed.
edit: also for me the font size is set to 12, not 14
Verdict: too small.