I agree with edo that it is very busy and difficult to read. Way too much going on.

However, I think my biggest issue is in the diverse or lack of focus of the site.

Sharing content, and collaborating on ideas is two different things. There are TONS of ways to share content. Digg, Facebook, Twitter, HN, etc. Where does this fit into the picture?

Note that when PG created HN, he didn't just make a space to share any content, it had a focus. Is there a niche collabrr should be targetting?

then there is the 'collaborate ideas', again very broad, which is good for some things, but to collaborate on ideas I think requires some domain knowledge of those ideas. Is there any site today where people collaborate on any random idea.

Do I go to collabrr because I want to collaborate? Or do I go there to discover content? Maybe it's a messaging thing that I'm not getting. At HN, Digg, Reddit,etc. you discover and discuss. You don't collaborate.

So how is this site enabling people to collaborate?