Based on how the poll was phrased, the answer is yes. Given that, in a forum, there is an intrinic need for people to communicate, it follows that people who post are more important to the overall community than people who do not. As such, it can be generally said that people with a very high post count are more important than people with a very low post count.
If the question were instead something along the lines of "Do you think people with higher post counts. . . " I would have answered differently because I'd no longer attempt to answer the question objectively.
If the question were instead something along the lines of "Do you think people with higher post counts. . . " I would have answered differently because I'd no longer attempt to answer the question objectively.