Such content is not suitable for public or private consumption. It can also desensitize people to inappropriate sexual content over time, which is not conducive to the formation of healthy sexual attitudes. In a society, we should promote positive and healthy cultural content.
Definitely not. Workplace is a place for professional interaction. Sharing sexual stories, no matter what form, is disrespectful to others and can lead to various problems, like sexual harassment claims or a negative impact on team morale. We should focus on work - related matters instead.
One popular Naruto numb fanfiction could be those that explore unique jutsu combinations. For example, a story where Naruto discovers a new way to use his shadow clones in a numb state, which gives him an edge in battle. It could be a really interesting read as it shows a different side of his abilities.
Yes, there are many. For example, there are fanfictions about character relationships in a platonic way, like how two characters from a series become best friends and support each other through difficult times.