To the outsider, these threads assume so much context that they don't make sense. (Of course, if you are a computer or you have intimate knowledge of these tools, and these threads make perfect sense!)
Who, what, where, why, and how need to be answered.
Usually when there's a link like this on hacker news, one of the highly moderated comments explains the situation in ways that don't require as much context as a typical commiter would have.