These people who advocate destruction of personal property need a healthy dose of HOMEOWNER'S ASSOCIATION to regulate them back into reality..........
Well, I'm not sure whether you're being ironic or serious, so I'll guess serious first...
I'm no fan of homeowner's associations, and live out in a rural area where there aren't any. I don't want anybody telling me I have to mow my lawn to a certain height. I mow it, but only when I feel like it. Some of my neighbors have rickety buildings and dead cars on blocks and so forth, that would curl your hair. Over-long lawns don't even get a sideways glance out here.
I'd never take it upon myself to modify a neighbor's property by stealth or destruction. That's just not right. Bad enough when the associations do it by regulation, but if you choose to live in a regulated area, that's the price.
I can't wait until this guy's association writes in a bylaw regulating "Lawn Speech".