I'm pretty much in the same boat. I hang out here so much because a) a lot of the content shared is interesting to anyone with an interest in technology, computers, or lately the world in general (seems like HN has been growing more broad), and b) With the rare exception, the discussion here is interesting and executed with respect. At times the conversations are more interesting than the articles. People here often cite sources, they highlight points they liked about a post before they disagree. I had a philosophy teacher who often would randomly just throw out into the class "Intelligent people disagree! It's ok!" I feel like that is supported here, a majority of the time.