What contextual information would best improve HN discussions understanding?

Hello! I'm from France. I find myself misinterpreting some of user's comments because of lack of context or introduction to the comments or personal experiences of authors. Comments currently have 4 pieces of information so far beside text : author's username, vote count, date time and, implicitly, parent comment. According to you, what 5th piece of information would help to better understand author's point of view? As an example, each post could also have the continent or country where the author is currently living in (at the time of writing and posting)