I'm fully on OP's side and wanted to do this thread myself many times. It's frakking unacceptable.
The user experience is awfull, and it's the same since the Wii. Miiverse is good, but it can be incredibly good if all the OS was faster, I mean, was running on a normal speed instead of anormally slow.
And I disagree with what cw_sasuke said on the first page, even now, the 3DS OS is still too slow!
Of course it's because bad OS programming, but it shouldn't be so hard, especially since people are complaining about that with the Wii, and the 3DS years ago.
They have offices in Redmond, they should have hire some of the thousands of people around here who can help them on this, years ago.
Another thing who piss me off:
All the previous things we had, with the Wii for example, are gone. New system and you get a blank page!
Nice little things like the Nintendo, the news and the weather channels are gone. Why? In the 3 or 4 years Nintendo spent to design the Wii U no one had the time to port and enhance those?
Oh, and finally, you know what? I'm waiting for the threads and Miiverse whining about the lack of directories, in a couple of months. I understand the dashboard can expand, but I would like a way of putting all the demos in a Démos dir, all the NES VC games in a NES dir, etc... And it's always the same, it took 2 or 3 years to play VC games from the SD Card on Wii, it too one year to have directories on 3DS... All over again, I'm really mad on those topics!