Theoretically there is a decent mixture of factors that activates more users desire to respond based on the prevailing themes and culture of HN, yeah?
I'll start it off with something I don't think works too well:
A blatant attempt to generate a business idea or conduct market research.
Something that does work:
A question that taps into personal experience and gives users a chance to express their philosophy on a subject.
I notice I'm more likely to respond to questions about jobs and participation in industry.
Thoughts?