Somewhat meta question, do you believe that down voting opinions we don't like is a good way of engaging with one another on HN? I wish we could discuss the is

Somewhat meta question, do you believe that down voting opinions we don't like is a good way of engaging with one another on HN? I wish we could discuss the issue here, and instead would have liked to hear from you why you think it is a pitically unrealistic proposal, and what your criteria is for seeming something politically unrealistic.