I bet you there would be far less MOOP if a spot at Burning Man didn't cost so much money. When people pay hundreds of dollars, entitlement tends to creep in. They tend to regard themselves less as a participant and more as a customer.

"I'm not sweeping my spot look for a tiny screw; I paid hundreds of dollars to be here; I'm packing up in the most convenient way to me and getting the heck out."

Of course, that depends on personality, outlook and circumstances. Given enough people, you get lots of variety in these parameters.