Check out the top comment under SF tech bro: ‘I shouldn’t have to see the pain, struggle, despair of homeless’. It was at least generating some good debate, but HN decided to flag and bury it. https://news.ycombinator.com/item?id=11125896
See the dominant and buried comments for 272 Slaves Were Sold to Save Georgetown. What Does It Owe Their Descendants?: https://news.ycombinator.com/item?id=11512830
Why was Neoliberalism – the ideology at the root of all our problems flagged to death? https://news.ycombinator.com/item?id=12304414
Hell, even this post has been quickly taken off the front page despite having better numbers (70 votes in the last hour) than many items that are there now.
Politics and economics points of view are heavily filtered here. Rarely if ever does a challenge to the status quo make the front page. If one does it is then killed, ironically, for inspiring debate!