So much disappointments in Kabukimonogatari episode 2...  

too much interesting parts was cut off from it   

Not that proficient though, still learning the language.
Baka-tsuki and canon-rap is your best source for light novels translations.
Yeah, Nisio's works contain a lot of anime-manga and cultural references--which are the factors of most of his works did not get proper translation.

You can read English translated Kabukimonogatari in Baka-tsuki, though there are only 16 chapters translated so far (the project is probably halted), you can read it up to the point of episode 2 maximum, and you'll realized that those that were cut off are actually pretty interesting and funny too.
This time Akiyuki has made me disappoint since Nadeko Snake...

Pretty much satisfied with episode 10 (9 if you didn't count the recap) though the emotional part is pretty shallow, like seriously, it has to be a scene which moves your heart.
I will not expect much for Otori and Oni after this.

The latest episode shows that Shaft is making Koi arc the best in SS so far, followed by Neko Shiro.
Greatly depressed how they made Kabuki the most underwhelmed arc

in the original novel, the pacing was much more slower than this.
you should be thankful that Shaft cuts unnecessary dialogues or else you'll suffer more of the dragginess.

about the closet thing, it will be revealed in the arc's climax.

in the original novel, the pacing was much more slower than this.
you should be thankful that Shaft cuts unnecessary dialogues or else you'll suffer more of the dragginess.

about the closet thing, it will be revealed in the arc's climax.

You got your Kabuki and Oni arcs trimmed down massively, it results in pretty bad adaptations so far, considering Shaft has done better in previous installments.
I mean hey, I ask you one thing, as the anime audience, by far, what could you understand from Shinobu's back story-telling? I seriously pity the anime-only audiences out there as they didn't get to the whole picture of the supposed first generation Kaii-killer, his rebirth and his death.
So as Kabuki, so much of the conversations holding the essence of Araragi and Shinobu's bonds together being cut out until there is nothing left behind, explaining their growing bonds. It's like the only matters in the anime was the whole time-space travel thing.

The 4th one looks okay to me. It need to be done this way, I mean they need to retain the dragginess in this arc thus making the 1st and 4th episode suffers (from my own calculation and justification, I am comparing the anime content to the source material).

Shaft simplification in the 2nd and 3rd episode may look like okay to most of the viewers but I need to stress that they totally ignored the back story of Gahara and Kaiki two years ago. They will never coming back, unless in Bluray release, Aniplex decided to insert audio monologue of it just as the same they did to Hanekawa's letter to the cat in Neko Shiro.

More cutting means the arc pacing will be ruined further and more anime original contents means unnecessary Shaft's intervene. Iirc, Shaft has never made an AO  scenes for Monogatari except for that scene where Oshino Meme met Araragi the last time in Bake.

Well, this is the only way Shaft can retain the greatness of the arc without interfering much.