It has a misleading title, and poor and dangerous content. Protests and police columns so don't work that way that it's actually dangerous for this to be on the front page and upvoted by so many people.
I do agree with most of what Occupy is about, but if the writer of this post is trying to make any political point, he is failing.
Also, I think that a blog and an HN thread are so not the place to learn about how to safely occupy public space and how to participate in a protest, that I simply don't understand how hard some are trying for it to be that place...