This was my first thought exactly... to get it to be viewed as having "value," people are going to embellish or make up stories in an attempt to make money.
Yeah that would be the result since surely many people will make their own untrue stories so that they can earn more money from this and i think site owners should do some deeply reading so that they can determine if the stories are true and not been a product of someone's fantasy. But anyways i think also that dev will accept some fiction if the stories written is good and able to make the heart pumps on those who read it.
You really can't decipher what's true and isn't, though. There are some far out stories that end up being true, and others that aren't as far fetched that are fake. I don't think there's really any way to "verify" things. I'd say it's akin to /r/nosleep, where the premise is that things are all "true" but it's obvious that most aren't.