I'd argue reddit is more of an amplified hive mind of the communities that use the internet, of which some become toxic due to ineffective moderation policies or squelching of dissent.
The elephant in the room is that large subreddits tend to avoid deep analysis if it disagrees with the hive mind, and cross-brigading from smaller subreddits happens all the time. Add influence peddling by sovereign states to that.
Only if politically and economically convenient. I've seen people openly condoning torture and rape as long as they happen to unsympathetic victims. The subreddits fostering this behavior won't get banned unless it threatens reddit's advertising. In practice it means only politically incorrect communities get banned.
