In general the crowd at hacker news prides themselves on being super objective, so I think it's worthwhile to recognize the fundamental subjectivity of being a human.
I think it's an important thing to recognise especially in the worst case when some people exploit this to convincingly present opinion as fact... anyway i'm way off topic, my point was in response to wufufufu: I don't wonder if posts on HN have some kind of psychological biases, I am confident they do, in spite of perceived objectivity.