Well, I'll tell you that you shouldn't follow me, because I rarely submit posts. I actually feel bad, given the number of people who do follow me. Apart from the good following practice that AlderaanDuran describes, there is the community page, which has links to a bunch of popular users.
I started following you because you were sharing a lot of interesting stuff. As for comments, I'd say that quality trumps quantity. If somebody tends to say less, but what they're saying is interesting or well put, it's generally better than if somebody commented a lot, but said little. The "community" page is interesting, although it begs the question: is somebody worth following simply because they're popular? Or is it possible to be unpopular or unknown, and worth following? And if so, how do we find these contributors? Or maybe Hubski isn't yet big enough for that to be a real problem.
You ought not feel bad, you share a lot of posts which is pretty important. That's how ideas, articles and conversations spread throughout our community. Also, you are a great commenter which is extremely important. I tend to follow people based on comments as much as, if not more than, posts.