Instant red flag in a story for you?
I don't think its controversial to say stories on this sub are not exactly all "believable" or "true". But I think there are degrees to how trustworthy a story seems.
For example, some stories are (in my opinion) likely based on true events but with certain aspects exaggerated for effect.
But then there are ones that are so blatantly false, everyone knows it and calls it out. And I'm curious what everyones' lines are for telling that.
For me personally, the deadest giveaway is any variation of "The Problem Player (tm) always had bad rolls and failed literally everything they tried to do, and I (the Perfect Player) had all nat 20s and never messed up and was flawless and everyone loved playing with me".
I've played with a problem player before and let me tell you- those people do, unfortunately get lucky sometimes. I played a one shot with this old friend who was not great but he did get a nat 20 to kill the final boss quickly. It just happens sometimes.