HN has institutional memory against the dangers of Eternal September. Humor is easy because it barely needs to engage with the post or comment it's under to be

HN has institutional memory against the dangers of Eternal September. Humor is easy because it barely needs to engage with the post or comment it's under to be considered a valid "joke comment". An insightful or deeply curious comment is harder, because it more strongly needs to engage with the content in order to be a valid "insightful comment" or "insightful question". Sometimes HN upvotes humor, when the humor offers insight or a clever summation of something. Refugees from Reddit learn quickly that going for the funny quip or the easy jab is just as likely to get downvoted as upvoted.