Board Thread:Theories and Speculation/@comment-1512913-20190615111653/@comment-27797856-20190616161510

That's not necessarily true for all mangaka, though. There are some that explicitly state "Oh this is a side story, it has no impact or relation to the events that are happening in the manga at the moment" and such.

Kishimoto's just old. He doesn't interact with his fans because he's probably just busy with his life and his family, and is not aware of the internet culture, I would assume.

Though it's also really common for the mangaka to give plot points to studios to adapt. It's usually not the whole plot, just the major events that need(-ed) to happen throughout the arc.