I came to Hacker News through Paul Graham's essays. I learned about Paul Graham because we used ANSI Common Lisp in an elective Common Lisp class. His essays were specifically suggesting that many college-aged techies would benefit from starting a startup instead of going into the traditional workplace.

I bet that describes a lot of the early HN (originally: Startup News) users. I don't think it was really "totally aloof engineers", but instead young geeks without much perspective on the world. Most of us weren't even engineers at that point, by any reasonable definition of the term.