In the years before the internet we had newsletters and amateur radio. https://media.tenor.com/9k_DNT8tBA4AAAAd/simpsons-i-wish-to-...
Today it's quite difficult sorting fact from fiction from speculation. Even among the non-postal "decentralized" distribution protocols. The old saying that people become leery of media reporting when they see how their own specialty is botched applies to even the credentialed bloggers when they step out of their lane just a bit.
I've personally noticed fact reporting biases when, for instance, reading a story on the same event from Fox News and CNN. But the basic facts reported agree when they overlap.