What makes a good internet/4chan story?
I often see stories that are just "D&D games gone wrong", "Disgusting individual does degenerate things", "Op does something dangerous/unique; crazy results".
Or a combination of the above.

What are your thoughts on how to write a good story, what things you enjoy most in a story, and what things should definitely be avoided in stories?

I don't find any enjoyment in reading stories that are just there to create a sense of disgust or disturbance. Anyone can write about piss and shit you degenerates.