The use of highly cluttered web designs is also a distinctly East Asian phenomenon, but I'm not sure what the cultural explanation for that would be. It's especially odd to see it in Japan, where a more sparse aesthetic dominated the traditional culture.
I'm not 100% sure either, but the explanation given in http://www.tofugu.com/2012/05/15/japanese-web-design-why-you... seems not too far off.
The bias is quite evident in that article: "One culture's clutter is another culture's useful information." Being from the East myself, I've always found the increasingly "information-averse" nature of the West to be a little odd.
Short version, in a 'high context culture', things can be left unsaid and the cultural background will explain effectively to people within that culture (and less effectively to people outside that culture).
A Texan (the American south is high context) can say quite a bit with 'yep...' and letting the culture explain the rest of the meaning.
In a low context culture, less emphasis is placed on single word choices (though they can still be important) and more explanation of the entire context of the communication is done.
:+1: for follow an organization
Imagine Github offers a way for organizaitons to publish news! So instead of me going to blog.mozilla.org or blog.github.com to find out what's going on, I can just subscribe to an organization, get a newsfeed of their latest releases and announcement, and highlight commits (ex: https://github.com/rust-lang/rfcs/pull/59) !
I don't have time to implement this as an idea, but I think Github has that resource to implement it.