There will be communities without you, but this blogging thing is not a destination in the same way that you thought about your Web site. In fact, even for your Web site, you might consider what the user wants to do vs. the path you want to take him through, if there is a path at all.
Remember number 5 on this list, and that with a blog you’re very much in the art of possibility mode vs. the confines of the limited universe of one-way thinking. What would happen if you took a seat in the midst of the audience? What would you see, feel, experience, learn?