Well, it could mean that this fanfiction was one of the first to explore Naruto's relationship with the Kyuubi. Maybe it delved into how Naruto's life was affected by having the Kyuubi sealed within him in a unique way that hadn't been done before in other works.
In Naruto fanfiction, 'naruto dominates kyuubi' can be significant as it shows Naruto's growth and power. Naruto has a complex relationship with the Kyuubi. By dominating it, he is taking control of a powerful and previously menacing force within him. It could symbolize his journey towards becoming a stronger shinobi and his ability to use the Kyuubi's power for good, rather than being controlled by it.
Naruto, Hinata and female Kyuubi in fanfiction are important as they allow for a different exploration of the power structure in the Naruto world. Naruto has the power of the Nine - Tails, and a female Kyuubi could bring a different perspective to that power. Hinata, with her Byakugan, could interact with this new power dynamic in unique ways. It could also show how their relationships evolve not just on a personal level but also in terms of how they are perceived in the ninja community. For example, if the female Kyuubi is accepted, it could change the way Naruto and Hinata are viewed as well.
I'm sorry, without actually reading the fanfiction, it's hard to say exactly what the plot is. But generally, it might be about Naruto's life with the Kyuubi. It could involve his struggles, his growth, and how he copes with having such a powerful and dangerous entity within him.
It could be in an alternate universe fanfic where the rules of the Naruto world are completely rewritten and Naruto's identity as the kyuubi is central to a new and unique storyline.
One consequence could be that he becomes extremely powerful. His physical abilities like strength, speed, and endurance are enhanced. He can also use more powerful jutsus with the extra chakra boost from the Kyuubi.
Yes, in some fanfictions, Naruto is often depicted as the Kyuubi or having a very close connection to it. This can lead to really interesting and unique storylines that deviate from the original plot.
One potential risk is losing control. The Kyuubi's power is wild and Naruto might find it difficult to keep his sanity while using it.
In many Naruto fanfictions, Naruto might have developed some new and unique abilities that the Kyuubi has no defense against. This could make the Kyuubi, which is used to being a dominant and feared force, feel vulnerable. For example, if Naruto has the power to nullify the Kyuubi's chakra or to manipulate it in a way that goes against the Kyuubi's will, it would be a cause for fear.
One implication is that Naruto could have even greater power potential. Since the Kyuubi is extremely powerful, being its descendant might mean Naruto has latent abilities that are far beyond what was shown in the original story. Another is that it could change his relationships. People might fear or revere him more depending on their views of the Kyuubi.
In this kind of fanfiction, Naruto might show the power of the Kyuubi in a new and unexpected way. Maybe he reveals it to his friends to gain their trust in a crucial moment. For example, during a battle against a powerful enemy that they can't defeat with their normal abilities.