This post about dog poop caught my attention at the end, where DeCoster writes:
"Or you can just pass costly, crazed, DNA doggie laws which 'respect property rights,' such as the article described. And then here’s the question: how will you enforce those mandates? By force? If it is truly 'voluntary,' you can turn your back on the condo mobocracy and refuse their Orwellian mandates."
The answer is "by force," of course -- the same way all "voluntary" private property rights are enforced. If private property were truly voluntary, I could just turn my back when some property owner tells me to get off his land.