I find similar things in youtube comments, facebook threads etc. A facebook page or youtube video with, say, pro Israel message gets a mob of commenters shouting down anyone who speaks about the plight of Palestinians. Meanwhile a page or video about &quot;occupation&quot; will have a mob shouting down anyone who speaks about Israel&#x27;s right to exist. Very few in the mob actually make point by point rebuttals or even actual sense.<p>The same can be seen in religious forums, atheists, etc. Try to post in a religious stackexchange - with the notable exception of judaism.stackexchange.com your post is likely to be censoredor heavily modified if it&#x27;s too critical or raises inconvenient issues.<p>At least, sites like quora and stackexchange have rules that tend to promote a clean end result, with quality answers. On social sites like facebook, however, things usually devolve into over 90% &quot;bad&quot; argumentation as defined by paul graham.<p>I think there is some internet study that anger and outrage motivates people to respond more than good things.<p>On Twitter, where people shout into the void and most people in the mob don&#x27;t have a reputation to carefully manage, you can attract even more angry crap.<p>On YouTube it&#x27;s the same principle - comments are public so the angry confrontations with low wuality argumentation are more likely.<p>The design of the site makes a huge difference. Which is why libertarians are just wrong, there is no &quot;free market&quot;, every game has rules. You hear that libertarians? I am waiting for you on this thread!! :-P