http://www.slate.com/articles/technology/bitwise/2015/07/hate_speech_on_reddit_a_simple_novel_plan_to_quarantine_it.html

Reddit has an image problem and a user problem. After years of idealistically celebrating the site, the media, following the 2014 celebrity photo hack, now frequently portrays Reddit as a cesspool of hate in dire need of repair. Yet many of the site’s testy users are quick to rebel against any perceived intrusion on their autonomy and free speech. It appears impossible to address one problem without aggravating the other.