Well, let's think about that, Ski: Two of the Burning Man Project's "10 Principles" are Radical Self Reliance and Leaving No Trace. Come to think of it, a 3rd is Community Responsibility. So your logically considered questions are spoken to in advance by 30% of the Principles. I think we're soon to find out which of the 70,000 attendees are observing their religion and which are posers.
I recall reading that BM has long been on thin ice with the BLM, at least with the local BLM managers, and I believe Pershing County, NV has long been on record as being "done with it". One must imagine tons of solid human wastes and tens of thousands of gallons of liquid wastes distributed over a wide area won't go over well with either the Federal or local authorities, and we already know where the Pyramid Lake Tribe stands on the whole affair. Last, from what I've read and seen images of, tons of garbage and damaged gear is left for the organizers to remove following "the Exodus" even in a good year. One might expect something of an increase in such discards this time.