With 5.6 million members, Reddit's r/politics is a massive online forum. NPR's Lulu Garcia-Navarro speaks with moderator "Qu1nlan" about managing discussions in an era of misinformation. LULU GARCIA-NAVARRO, HOST: The discussion and news aggregation site Reddit sees some of the most web traffic in the United States, ranking higher than both Netflix and Instagram. In Reddit's forums, called subreddits, users find cooking advice, book recommendations, thriving TV discussions, all sorts of topics - including politics.Our next guest moderates the main political subreddit, r/politics. We're not calling him by his name because threats of physical harm and doxxing are so common on Reddit. He goes by the username Qu1nlan, and he told us that he sees mostly talk about impeachment these days. And though it has a slight leftward lean politically, there are users on Reddit from all over the political spectrum.QU1NLAN: We see a lot of really high-level, good faith discussion with people citing link...