You are correct in your thinking -- however, Four_Marks isn't exactly "gone".
He wrote a letter to the "customer service" department of the place I work for. It was a long letter, complaining of my treatment of him on CathInfo. I got a call from my boss this morning, asking what the deal was. In fact, he thought that Four_Marks might be connected with the large, mainstream Catholic website 4marks.com. I quickly brought him up to speed.
Now even a guest can look at my profile and get my e-mail address -- there was no need for Four_Marks to bring my workplace into it.
Do you know what's funny? He was accusing me of slandering his name -- but he's never -- ONCE -- given us his/her name! How can you slander a pseudonym? I don't think you can -- because he could just ditch his pseudonym and pick another! Your REAL name is a different story. You can't ditch that -- hence the damage that is done if someone takes away from your good name. That's why slander is sinful.
Matthew