It's not always about good vs bad people. Often just conflicting values and belief systems. My other new neighbor seems to be a nice guy. Problem is, we enjoy the wild turkeys and deere like they are our pets. He wants to shoot them for FUN!
That's life. In the OP's case though, he destroyed something which belongs to his neighbor and apparently thinks it's OK.
To say nothing about his other neighbor, who stole the absent party's posts.