"The whole operation runs on donations, of course."
You're not really "living" on $10 / day if your necessities are donated and you're occupying a public space. The costs of supporting you are borne by the donators and the taxpayers, respectively. EDIT: Turns out the park is privately owned by Brookfield Properties, and was created by US Steel.
An amazing spectacle, absolutely. Our generation's Woodstock, perhaps. But the title's misleading.