User blog comment:Sidharth.Jagan/Dabi is a Nomu(theory)/@comment-34053555-20200502012503

This is actually a bit more well-thought out than I thought, great connection with the scars. For the Stain explanation, I'd put Dabi as being one of the older Nomu's (when they were first experimenting), since AFO doesn't appear to have any qualms with experimenting on already dead kids. I think they might have done it initially to tick off Endeavor, but then realized that he couldn't handle the power (this happened with other people with added quirks) and ditched him. Dabi dyes his hair, reworks his scars, whole new look accompanied with a foggy, experimented memory. He joins Shigaraki on deja vu and his own want to take down hero society brought upon him by growing up a disfigured, explosive child on the streets. Great theory.