I have been on reddit for just about 12 years now. Something I've noticed over time is just how hateful the place has become. A complete outrage machine. Every single sub became filled with it. I've filtered so many subreddits over the last few years, it's insane. I don't know enough about this place to be sure, but I do hope it doesn't become the same type of echo chamber of anger.
You should look into Vincent Bevins. His Jakarta Method is a serious wakeup call about the use of mass murder against the left around the world and what last resort capitalism is willing to go to.
Oh and anyone who considers themselves to still be a socdem (rather than an anticapitalist of some sort) should read Imperialism in the 21st Century by John Smith.