I visited the server when "rian168" was there and the kid was quite the troll himself. When asked to present images of his mother's breasts, he decided to post the first image he found through Google images. He was also quite happy bragging about his mother's design firm. I have little sympathy for him and I can appreciate why Tony and the others decided to have some fun with him.
You could mention that the chat can be disabled, but I doubt Rian would want to play anymore after that. It is a 3D-building-chatroom you know.