"just develop a personality" sounds like a shallow dismissal. Most comments in most threads could theoretically be autogenerated when given style samples of what fits on HN and what opinion to use

A personality hardly shows through in a handful of sentences, besides which, I'd rather judge comments by merit than by the personality of the poster (hacker ethics, point number 4: https://en.wikipedia.org/wiki/Hacker_ethic#The_hacker_ethics)