Hiei is a well-known anime character from Yu Yu Hakusho, and short vocal clips tied to him have stayed popular in fan edits for years. This kind of sharp character yell spreads easily on soundboards because it is instantly readable even without context. Creators keep using it for action memes, versus edits and exaggerated reaction posts, especially when they want an old-school anime feel. It also fits naturally alongside other anime audio staples like To be Continued (jojo) in montage-style edits.