*proceeds to flip through recorded cases of the Sharingan....* "Oh Itachi killed his entire clan? Tobi(not gonna use his real name because spoiler) wants to destroy the world and is insane? Madara... nuff said. Sasuke... yeah um... the Sharingan is such a positive mutation guys :D"

He did have 6 wives and 500 concubines and apparently through research it was found that 0.5% of the male population(about 16 million male descendants) has an almost identical Y-chromosome as him. Not to mention that there is an estimate of 1.6 billion people related to him(in differing ranges of relation). I have no idea if this is true, but at the very least he has about 16 million confirmed male descendants.

He does. The fact that he’s even giving constructive criticism is something we rarely see. He knows what a good fanfic is. Using the “it’s a fanfic” argument doesn’t change the fact that this story is not perfect. This is a good one to pass time, but not one I’d actually read consistently because there are just better ones out there(that have better dialogue and character dev) *shrug*