Every now and then some who write conservative opinion get on their high horse when remaining afoot would be more graceful. For example this rant in a Townhall column by Christine Rousselle about the trash left at the Earth Day concert on the Mall in Washington, DC.
So people brought their garbage to the trash cans and, when these were full, piled it around the base of the cans. In my view, their behavior is blameless. They did what I would have done in their shoes.
Had they merely dropped trash where they were viewing the concert, that would have been bad behavior. They didn't litter their trash, but tried to dispose of it properly.
The fault lies with park personnel who didn't provide adequate waste receptacles. As we say in Wyoming, this was "not their first rodeo." A pair of regular cans won't do for thousands of people, and the folks who care for the Mall know this - it was they who screwed up.