Not stupid, but lazy, if you just passively take in whatever information pops up in your news feed. It's convenient, and could form a habit for you to check it up regularly even if you know what you see is mostly fake or non sense. If you want credible and realiable sources of news, you have spend time to search for it. Oftentimes you have to know the name of the source in order to find it, because chances are it's hidden by the evil algorithm and will never show up automatically.