It demands more of the person seeking information. Just like any intelligence gathering.
It's usually not very hard to verify information, and then you know which sources to trust better.
I think there's a difference between trying to stay informed and seeking information. I swipe to my newsfeed and see seven stories ranging from local to national, from local news station to fox to New York times. Fact checking each of these stories will take time that I do not care to spend, and I imagine most folks will not.
That's a classic trick of opinion manipulation. You start an account that posts factual content that caters to target audience. Then once the rapport is built, you throw your narratives in. The barrier to do this, on scale, all the time has never been lower