Wall of shame ?

Has anyone come across an account that had a wall of shame? I got an address this morning and on the person's profile is a literal wall of shame. There is no explanation for it or why it is being mentioned. I just thought it was in bad taste. What is the person trying to accomplish with it? Are they trying to shame other Postcrossers? Have other Postcrossers done something to upset this person? Is this person trying to get other people to do only what they want? It is very, very strange.