User blog comment:Kevo411/HxH Questions 2/@comment-23822532-20140615183924

1 - The human part in the Chimera Ants make their minds way more complex and individualistic, so it's common not everyone agrees in everything, that's why Leol, Welfin and Zazan didn't really care much about the Queen or the King, here, all of the Royal Guards are actually concerned of the King, but in different ways, so the 'good' and 'bad' limits are different in each Royal Guard.

2 - Hisoka was focused on him finding a prey, not him being the prey, also, naturally, Hisoka was confident enough nobdy in there was skilled enough to kill him, besides Illumi of course. By the way, when Gon no longer uses Zetsu and snatchs off his number, Hisoka is somehow aware of what happens, that's why he could find Gon easily.

3 - Conjuration = Creates physical Nen-made objects.

Transmutation = Transform Aura into something else, Hisoka's Aura is a bubble gum, Killua's is electricity, and Zeno's is a dragon.

4 - In most people, Nen is not awaken, and even if they meditate and can 'feel' it they can't simply know what it is, it's just some spirit thing. Also, if you use Nen somehow by chance, you would think you're just hella strong. It happened with Kurapika, when his eyes go red, his Nen goes up as well, but that's not something you can actually tell if somebody doesn't teach you about it or you research further about this 'power'. Like Komugi, she was completely unaware of her Nen Ability that made her extremely skilled in Gungi, and almost unbeatable, the King did understand what was going on, instead, Komugi just felt something weird and incredible was going on, she didn't think she had some sort of special power.

In the Heaven's Arena, it is either Togashi's flaw, or you could just think people believe it's some martial artist crap only those who fight there can pull it off. Also, not only Hunters know or can use Nen, in the Gen'ei Ryodan, only Shalnark is a Hunter, the rest of them either learned by themselves -like Hisoka probably did- or they teached each other.