r/Worldnews is literally an echo chamber for propaganda. They will literally ban users or lock posts/stories, so no one cannot use/repost the same source or even similar, exploiting their own rules to shut down even valid stories/sources of anything that goes against their pre-selected narratives. I have seen this firsthand on a number of topics and more than once, in order to end up shaping general narratives to normies by killing stories, thus creating a different worldview based on lies by omission.

Reddit, for news, just creates reality myopia.