Quite simple, I dont have access to the backend of this site to be able to compile that information and to be fair, the documentation for K2 is slight so to enable myself to learn K2 I created a subdomain for my install and thought hey, there is no information on the K2 site, I have no items on my site and I want to learn so why no write about what I learn.
You will also notice that despite throwing a huge number of hours in to my own site, I still spend a lot of time in these forums answering questions based on my own experiences to share with others.
iLLeT said:"This site is here to assist anyone wanting more information on how to use K2, the popular and powerful content component for Joomla! with CCK-like features developed by JoomlaWorks." Why not just help people with that information here on the official website rather then splitting it.