I have proof of idiocy and arrogance!!
I'm building something nice on Kalph's minicity server, when ArmyGuy__ joins (His ingame name). He was dying for attention, and kept saying things like, "Oh, it's finished!" and "Wait, nevermind" and "Ahaha that's so funny" while working on a build resembling a farm. It's the same thing that my 10-year-old sister does to get me to pay attention to her. Now up to this point, I was only slightly annoyed. The next thing he said was "No offense but that blue piece of crap you're working on will be destroyed". I payed him no attention. He left the server. Later, on the topic for the minicity, I could see him whining to Kalph about why his build got destroyed. I could also see that my build was still there on the live view, and still remains there to this day.
Moral: Don't think you know better than someone else.