Well, one possible reason is that some writers like to explore the 'what if' scenarios that are on the extreme end. They might think about how a character like Sasuke, with his troubled past and complex personality, could potentially act in a negative way towards Sakura. Another reason could be related to the freedom that fanfiction gives. Fanfiction writers can take the characters in any direction they want, and unfortunately, some choose to go in this rather disturbing direction. Some might also be influenced by other dark or edgy forms of media and try to incorporate that into their fanfiction, without considering the inappropriateness of it in the context of Sasuke and Sakura's relationship.
Some people might be exploring the darker side of human nature through these characters. They want to see how extreme situations can play out between Sasuke and Sakura.
It could be a way for some writers to gain attention. Since it's a rather shocking and controversial topic, they might think that writing such a fanfiction will make their work stand out. However, this is not a very ethical way of getting noticed. Another reason could be a misinterpretation of the characters' complex relationships. Maybe the writer doesn't fully understand the essence of Sasuke and Sakura's relationship and wrongly portrays it as an abusive one. Also, in some cases, it might be an attempt to subvert the typical happy - go - lucky or positive portrayals of relationships in the original series, but this is a very extreme way to do so.
The best chapter pointer here is Chapter 77, "Why are you sabotaging me again?". It opens with Wen Jiaojiao's reminder calmed Shu Yan down. and closes on But who knew that the next second, the lottery box would be handed over to....
The best chapter pointer here is Chapter 73, "Does Someone Like Jiang Li Deserve to Have a Fan Club?". It opens with Director Sun, tongue-tied, finally managed to squeeze out a sentence,... and closes on Despite Wen Jiaojiao's fiery temper, there were still many who were drawn....
Look to Chapter 70 for the clearest answer. It begins with So, under the curious gazes of everyone, Jiang Yan strutted up with his..., keeps building through He didn't even take off his sunglasses before he started reading into the..., and lands on He Yun was also surprised as he looked towards.
A practical answer is Chapter 76, because it turns the idea into a concrete scene. The chapter opens with Thinking of this, the aunt repeatedly praised, "Girl, hearing your words..., adds pressure through Leaving aside whether what she's made is good or not, just taking these..., and ends on Soon.
The best chapter pointer here is Chapter 101, "Hello, My Name is Zhao Daniu". It opens with Jiang Li walked over to the slope where the two had fallen down. and closes on If you encounter any trouble in the future, you can come to me..
If you want the clearest chapter reference, go to Chapter 89. Early on, Director Sun took a step back, "What's the rush?; later, the chapter leans on It's true about the go-kart costing one point, but this time we're using....
The best chapter pointer here is Chapter 70, "Irresistible Stunning Charm". It opens with So, under the curious gazes of everyone, Jiang Yan strutted up with his... and closes on He Yun was also surprised as he looked towards Jiang Li..
The best chapter pointer here is Chapter 103, "Selling a Kidney to Repay Debt". It opens with Jiang Yan looked at Zhao Lang with suspicion, eyeing the dark substance in... and closes on Jiang Yan felt deep guilt welling up inside him..
If you want the clearest chapter reference, go to Chapter 46. Early on, Upon hearing this, everyone but Jiang Li perked up with high alert.; later, the chapter leans on After all, there were only a few who didn't care how others saw them..
Look to Chapter 102 for the clearest answer. It begins with When the camera cut back, the three of them had already returned to the..., keeps building through The mud on Jiang Yan's body had dried mostly from the wind, and he walked..., and lands on The cameraman, with a blank expression, turned.