I don't build much becasue people grief it for no good reason. I already make sure my stuff doesn't block people's way and aren't irrelevant to the game, so when someone griefs my stuff it's solely because they have ill intent and want to see me cry when my stuff gets destroyed.
they know that on a crowded server they're unlikely to get votekicked easily, and that they can destroy what it takes me 3 hours to build in just 45 seconds.
so since I've had one structure after another griefered by jerks, and i'm not a hacker so I can't even get their IP find out where they live and plan revenge, I now specialize in ungriefable defensive structures. these things cannot be griefed, as it's impossible.
if I do build I make sure there's no one on that server and I take lots of screenshots while building so that in case a griefer joins it wouldn't be a total loss. and that server allows multiple connections from one IP, making it easier to vote kick him before any serious damage is done.
I want to get revenge against the griefers of my structures. they deserve the worst and cruelest of punishments. if only i was a hacker... find out where they live... get revenge!