User blog:Foreva/HxH is rich and quite popular, why are there so few articles on Hunterpedia?

I just went around and had a look at the wiki pages of some other mangas and I was astonished by the fact that they all have A LOT more articles and activities that Hunterpedia does. One Piece: 3200+ articles; Naruto: 4300+; Bleach: 1500+; Fairy Tail: 1600+; Reborn!: 1500+; Dragon Ball: 3500+; etc.

Dragon Ball, Naruto and One Piece I can understand why they have so many articles and contributors: they are manga giants in their own rights and indeed have a lot of stuff for readers to ponder and write about. But Bleach having 6 times as many articles as Hunterpedia's is hardly justifiable as far as I can see (I only read the first 100 chapters or so of it): the majority of this manga is made up of chapters with barely any text to begin with, and it's not like it's considered a masterpiece/critical success either. Fairy Tail: I have never read this manga and never will, however I gather that it's a low-grade One Piece's copycat with very little to no originality, why so many people dedicate their time for its wiki page? As for Reborn!, bleh, it's a very childish simple manga with clichéd power-ups, I only read it when I'm extremely bored (haven't read the last 10 chapters), and unlike Bleach, it's not really popular outside Japan, so to be honest I could hardly believe that it had so many articles and contributors.

Now return to HxH, if it were small fry in the manga industry then I wouldn't be asking the question in the title. In Japan its sales firgure per volume surpasses that of Bleach and is just below that of Naruto; its first anime adaptation was considered a cult classic among anime viewers; it has a sizeable community of loyal international fans; its author is also the author of Yu Yu Hakusho; it has a complex, dark, rather unpredictable plot with quite a few 3-D intriguing characters and little inconsistency; it has a cute, cool boy--Killua, a bishounen--Kurapika, a bad handsome boy--Kuroro, a charming psychopath--Hisoka, a likeable geezer--Netero, a complex, fantastic and relatively balanced and fighting system--Nen, a decent amount of blood and gore, and a lot more. All in all, it's how a good manga should be, yet nobody seems to care about its wiki page?

Could someone explain to me why this happens?