Yeah it was like my first time playing online and like my second day playing the game so I wasn't really sure how multiplayer worked. I think I was getting the hang of it though, right when I got banned haha..
But I've read the rules and understand them now.
I do not know how you knew I was griefing but that was before I knew the rules. Check it out, after talking in the chat and figuring out it was against the rules, I left a note for a guy and even built him a door.