How did Uvo use Gyo to see Kurapika's chains wrapped around him when Chain Jail puts you in Zetsu?
Why did Wing lie to Gon and Killua about Nen? He obviously accepts that he has some duty as a hunter to teach other hunters. Not to mention they were climbing the tower really fast and it wasn't a secret or anything. In the end, he lied to them just to 180 in a matter of days.
What's the point of En if people can sense you using it, you can sense people without it, and our main characters were never even taught it?
Why did Togashi create Leorio? He's the only main character who has never been treated like one. He has never been given the spotlight other than to be the butt of a joke.
Why would you want to conjure anything when you can seemingly make things out of aura that are invisible to non-users, can slip through physical objects, and have the properties of physical objects themselves, like Hanzo's clones, or Potclean and Toritaten?
What did Izunavi mean by saying you can't conjure something too superhuman? Harmlessly stealing people's body parts and shoving large objects through small openings and teleportation are not too superhuman?
Why has Chrollo not replaced Pakunoda in two whole years?
Wing said it was dangerous to open the aura nodes aggressively and the common method is to train for years, but literally everyone we've seen learn Nen learned it as fast or nearly as fast as Gon and Killua. Did Kurapika and Leorio go the aggressive way, too? Leorio learned Ten in three months, that's still way faster than what Wing said.
Each of the five trips to the Dark Continent that had survivors and brought back calamities were after it was made illegal, but Ging says each one was done by one of the V5. They just broke their own law? No one comments on this.
Why doesn't Kurapika just use his Dowsing Chain to find the assassin?
How come no one could tell Killua was being manipulated? His was a request-type which means he should've been half-awakened.