X20 Full-size ISO 400 images

What surprises me is when I posted a link to 57 photos shot by another person in Japan the other day, the same people were really happy and satisfied with lack of noise at ISO100-400, and very pleased with noise at ISO800. http://forums.dpreview.com/forums/thread/3388077

Now the same people write here that they are considering canceling their pre-order because a different person's photos look worse in that regard????

How about getting the camera, and checking it yourself, or, waiting for professional reviews and comparison in the alternative?