Biggest Disapointment of Decade?

[ShinmeiSuzaku]

Well Diend does look like Den-O
So obviously who ever did that was probably working late into the wee hours of the night.

 

[Quattro]

Shou Aikawa's departure.

Decade was actually pretty damn well-written before he had to leave. Just go away, Toshiki Inoue...

 

[Milky Rose]

I must say the Recasts...since we were promised the return of Inui Takumi.

But I've since learned to like the AU stories.

So I'd say it's the fact that Kuuga rarely ever henshins to help out Kadoya.

 

[ForeverRed]

EDIT:
THIS TOO!:

 

[Red Falcon]

The fact that Narutaki had a Henshin Fork in Hibiki's world, yet does not become a Kamen Rider. That's not right.

 

[Quattro]

The fact that Narutaki had a Henshin Fork in Hibiki's world, yet does not become a Kamen Rider. That's not right.

Yeah, that's Wall Banger territory, especially given how that scene was teased.