Okay, so I've always been a bit of a fight scene nerd, and I've rewatched those big Naruto battles way too many times. The harem jutsu thing gets treated like a gag, but there's some actual tactical thinking sprinkled in there, honestly.
Look at the Pain fight. It's not just thrown out randomly. He's exhausted, out of options, the Nine-Tails is going haywire, and he uses it as a distraction to get a single hit in. It’s a last-ditch effort that capitalizes on Pain's—well, Konan's—brief moment of shock or disdain. It highlights how scrappy Naruto can be even when his back is against the wall, using anything in his toolkit, no matter how silly.
Then there’s the Zabuza fight way back when. That was the first real hint it wasn't purely a joke technique. He uses it to break Kakashi's water prison by shocking Zabuza for a split second. It shows that even a 'useless' jutsu, when deployed against an opponent who would never see it coming, can create an opening. It's less about the power and more about the sheer unpredictability. Later on, he kinda stops relying on it as much, which tracks with his growth into more serious techniques, but those early uses really cemented his character as someone who wins through cleverness, not just raw power.
It's a weird signature move, but it fits him.