https://www.cnbc.com/2019/04/09/youtube-shut-down-comments-on-house-hearing-on-white-nationalism.html

YouTube shut down the chat feature on a live stream of the House Judiciary Committee's hearing on white nationalism Tuesday after it was inundated with hateful comments.

Just around the time that a representative from YouTube parent company Google spoke about the company's content moderation efforts, some noticed the live chat function had already been disabled. But commenters simply seemed to move to other streams of the video on YouTube's platform, enraged by the company's attempt to block their posts.