And I don't mean the short stroke-type stories for specific kink audience or bragging rights.
No, I mean the epics from mainly 4chan.
Like The Liliad, Tasha's Brother and Storybro.
Liliad was sad and probably the most believable. Tasha's Brother is fun and may have started as a true story but later chapters read more like wish fulfillment.
Storybro adventures... had the most emotional impact for me. If the story was true (and the author said, it is mostly true, just some liberties with the flow of the events and the dialog because it happened over 10 years ago). The first story, the sleepover, was fun and engaging. The second story, road-trip, was a little darker but still with a somewhat happy end. The third story, (or rather the two parts of the ending) was gut-wrenching if this was really a true story. The whole saga has more than 500k words or so.
I never had such a reaction to a story like storybro and it got me into the binge-reading frenzy that I currently am doing since 2 years ago.