Then none of the reasons why I hate reddit will change.
Maybe the structure of Hubski solves some of these problems, maybe not. Or maybe Hubski will never become popular in the ways reddit, digg, or even 4chan did. I guess we'll find out.
On that topic, I am planning on dropping the 'most popular hubs' from the discover page soon, and replacing it with something else. (I actually plan to change that page quite a bit.) I want Hubski's community structure to be dynamic and organic, not centered around a list. If someone's hub is popular, it should be because they attract a lot of followers through their posts and shares, not because they have preferred real estate on the site. It was useful to get things moving, but I think it could become detrimental in time.
He should eventually be bold, but although the problems are easy to identify, the best solutions might not be.