I'm not saying either you or the parent commenter is right or wrong, but fiction in books and movies are clearly fiction and we consume it as such. You are right that some people have been making up fake stories and others (the more naive) have been quick to believe in those false stories. The difference now is that it's not just text invented and written by a human, which takes time and dedication. Now it's done in a second. On top of that it's easy to enhance the text with realistic photos, audio and video. It becomes much more convincing. And this material is created in a few seconds or minutes.

It's hard to know what to believe if you get a phone call with the voice of your child or colleague, and your "child"/"colleague" replies within milliseconds in a convincing way.