That community sort of feel, like a local pub, with some new people and always the good ol' regulars reminds me of how forums felt when I first started using them - stick around long enough and you start to recognise names. But I think hubski goes one further - I think it takes absolutely far less time for this to happen on hubski than it does on messageboards/forums. I like that.
I discovered Hubski about 1-2 weeks ago, and really enjoy it so far (even though I am a little quiet). It reminds me of when I first signed on to the Internet in 1994, how the communities were small, but close and respectful in dialogue. Much more signal than noise.
I wish the founders nothing but success -- but I also hope Hubski doesn't grow so much that it loses its culture. (Perhaps keeping the culture in the long-term /is/ the measure of success!)
You are the barrier to entry. Who and what you follow is what builds your feed. If you consistently see unsavory users in your feed you can "ignore" and or "mute" them. You can do the same with URL's and tags. In short, if your feed sucks, take stock of why and change it. erin is right, whether or not we can maintain this overall culture is the measure of success though, from where I sit. But, should the idiots intrude conceivably you may not even notice.
A lot of food and restaurant analogies in this, I love it. Great interview guys, and I'm glad to see both of you standing by the conviction that Hubski isn't "the next Reddit", but simply another site to visit.