How do users express skepticism (e.g., "this didn't happen," "creative writing class")?

Reddit has developed a range of verbal formulas for expressing doubt about a post's authenticity, particularly in communities where personal stories and confessions are the primary content. The phrase "this didn't happen" appears as a reply when a story seems implausibly convenient, dramatically perfect, or structured in ways that feel fictional rather than lived. It is a shorthand accusation of fabrication delivered without extended argument — the community relies on pattern recognition rather than proof, noting that the story hits too many emotional beats too neatly. "Creative writing class" or "creative writing assignment" is a more pointed version of the same skepticism, implying that the poster is practicing fiction rather than recounting reality. It often appears when a post reads with the narrative craft of a short story — clean setups, clear foreshadowing, dialogue that sounds polished, and a tidy resolution. The phrase implies that the skills on display are literary rather than testimonial. "That's some impressive fanfiction" and "r/thathappened" serve similar purposes. r/thathappened is a dedicated subreddit for collecting implausible stories from across the internet that are presented as fact but seem almost certainly invented. Being told your post belongs there is a community verdict that it does not pass the plausibility test. The standard for these expressions of skepticism is informal and often unfair. Genuine experiences can read like fiction, particularly when the writer has a natural narrative sense. True events are sometimes stranger than anything invented. The skeptical responses are at their most legitimate when a story contains internally inconsistent details, escalates beyond plausibility in a single direction, or matches a template that has been used for fabricated posts before. At their worst, they silence real people sharing real pain by demanding that lived experience conform to the aesthetics of believability.