[n_u_l_l]

From reading the rejection notes, it seems like they misunderstood your app.

You should mail them. Tell them that it is a reader app like Reddit that contains user generated content. If you're resubmitting it for review, also tell them that in the review notes. If they still don't understand your app, ask concrete questions (eg what changes do I have to make in the app store details to be treated as other reader apps like Reddit). Linking to similar apps (in this case HN clients) has also helped me when being rejected.

Based on the rejection notes, they simply misunderstood what the app does and who it is aimed at. Hacker News is not the Apple support and I think you should ask them what to do before asking us.

They have always been helpful when I contacted them. When my apps were rejected, it usually took a simple mail and within a day the app changed back to "Being reviewed", and then "Accepted".