I’d suggest that Occupy Wall Street is focused on saying “No” – no to fat cats, no to plutocrats, no to the banking industry, no to business without accountability.  “No” may be the only thing the people involved can agree on.  Burning Man, by contrast, is focused on affirmation:  bring something, build something, create something that everyone can participate in!  Burning Man’s anarchic spirit, though very real, is usually sublimated to a variety of very specific goals – wouldn’t it be cool if we built this and offered it up to the community?