While HN would kindly steer us towards polite curious conversation, the range of topics themselves is wide open. I have yet to see a site-wide blanket ban on, for example, adblockers. It is a contentious topic in the industry, there are entrenched trillion dollar interests that would rather have adblockers dissapear, and yet we can have a hopefully polite and informative conversation about the relative merits of subtopics in this area.