The facts of the camera's capabilities/qualities/etc cannot be inferred with confidence from a sample of three out of 500+ cameras sold, period, regardless of how much you might value RFF subscribers' opinions. That simply makes no sense ... I'm a Mathematician by training with a specialization in Statistics and Statistical Theory ... If you believe that such a sample can be used to make inferences with any confidence at all, you simply do not understand Statistics. That's nothing bad about you, it's just a little bit of ignorance which is shared by 90% or more of the people I know who are not trained in or have not studied Statistics ... And even some who have. 🙄
The problem with opinions and feedback is not all opinions are created equal. I'm not a statistician by any means, but I learned that
very quickly doing product development in my own niche.
The RFF crowd is, largely, a very discerning audience; it's a forum full of (predominately) older people who've spent a lot of time using some of the most celebrated cameras that have ever been made; Leicas, Hasselblads, Nikons both S and F, and so on.
On the flip side, another community will have different expectations. Let's pick on Lomography here, for example - if you put the most flawed and inherently defective camera into that community, they'll actively celebrate its flaws. The weird colour balance issues and erratic exposures I've seen reported on here about the Pixii would go down
fantastically on that website.
A more "balanced" community - let's take Flickr here - will probably give a fairer assessment, but without knowing the background of the user, it's tough to know whether your experiences will match theirs. I've never used a Pixxi myself, but I think it's fair to see that as a prototypical RFF user, I'm far more likely to agree with the three negative experiences on here than I am the responses of the average Flickr user.
Applying statistical analysis to reviews is ultimately a fool's errand without that background information, no matter how you want to spin it.