Well, in the MHA manga, Dabi does meet his end. It's a poignant moment that has significant implications for the story's progression and the dynamics among the characters.
Midoriya Izuku could also have an interesting reaction. He's always trying to understand the villains better, and Dabi is a very mysterious villain. He might study the fanfictions to look for clues or insights into Dabi's character that he could use in a potential confrontation or in his quest to become a better hero. He might be surprised by some of the creative interpretations in the fanfictions.
Well, unfortunately, Dabi did meet his end in the manga. It was a heart-wrenching moment for fans. The events leading up to his death were filled with tension and drama.
In hero academia fanfiction, Dabi is often depicted with a complex personality. He is a very interesting character to explore. Some fanfictions might focus on his backstory, like his connection to the Todoroki family. Writers may also delve into his motives and how he became the way he is in the fan - created stories.