While Zuck squirmed, Reddit revealed it found and killed 944 Russian troll factory accounts
https://www.theregister.co.uk/2018/04/11/reddit_transparency_report/
While Facebook CEO Mark Zuckerberg testified before the US Congress, Reddit confessed to its own Russian problem.
A post by CEO Steve Huffman, aka “Spez”, reported that the site has identified 944 accounts it thinks were run by the Internet Research Agency (IRA), the Russian “troll factory” whose staff have been indicted for alleged election meddling.