Block him. You will no longer see any emails or picture comments from him. He can still send them and think you received them, but will just think you are ignoring the messages. Also, click on 'help' and report him and include in the message the pic comment he made.
My profile is blank because I joined this site to be able to chat with hopefully other open people. But occasionally I got s#it dumped on me or made fun of. So I am opposite of someone who makes fun of people that keeps a blank profile. Sorry for your bad experiences.