Same thought occured to me. My first thought was it sounds like these people essentially set up Burning Man on Wall Street. I haven't been to the former, new to the Bay Area, but got real curious when it was held a few weeks ago and read up as much as I could about it. This article sounded very similar to the ones I read describing BM.

Makes me wonder what cross section of OWS are also burners, especially among the OWS organizers. Is that where they learned how to pull off something like this massive temporary settlement?

Dust, not sand. :)

Now if they only carried out their own trash...