I am actually quite surprised how complicit the media is in not reporting what goes on Reddit. It's the one place on the "mainstream" internet I run into where you can see calls for political assassinations in default subs, sub-reddits devoted to theft, ethno-nationalism, terrorism, and all sorts of content that makes 4chan seem tame in comparison.

Then there is the huge cross-polination of moderators with radical ideas, who just happen to moderate radical sub-reddits and some prominent default/mainstream sub-reddits.

If advertisers only paid attention. If journalists only cared.