John is referring to an individual who used a ficticious name to create a login. I thought a person had to use their real name, then after, they could change it to a "pen name". I did look at the types of posts the person was writing, and they seem legitimate, likes C/L, certainly not troll-like. I could be wrong, but suspect the possibility that this individual contacted the admin team here to have his name removed because of problems by others.
Greatest problem with using one's real name has to do with search engines, and the lack of privacy these days on-line. Plus, there is nefarious activity out there, were some sites actually combine your personal information made available to anyone for a small fee but reveal enough to essentially destroy your privacy. But they also want you to contact them so you can tell them to stop, which is to me, another way to get more info from you.
Problem is that governments just about everywhere it seems, do nothing to stop this type activity. You are basically on your own, unless you have the financial means (wealth) to hire a legal and technical team to pursue them. Very few of us have such resources, talking about $6,000 starting, and that was almost 20 years ago.