I have been using hubski as a "publishing/blogging" platform #tngpodcast as well as a place to share and consume content. It's a unique place in that it allows anonymity and familiarity. For example, I've never met steve, but I feel as though I have because I follow him and we have had a number of really great discussions here on various topics.
My favorite function is badges. The "hubwheel" in the upper left corner next to your name populates with more "dots" as you use the site more and eventually it does a full rotation. When this happens you get a badge that you can allocate to any post or comment that you deem worthy. This is a way for Hubskiers to both be appreciated for their time on site and to show appreciation to a fellow hubski users quality content.
Currently it is a small but growing community with many interests. I also like going to the "community" page, located on the left of screen under "discover" and checking out the most popular post/comment of the day as well as trending tags.
Welcome to Hubski throwaway, see ya around the halls.
edit: ps. check out "dark" under "controls" and "style". Once you go dark-ski you never go backski.