My comment pointed more toward the fact that, to most people on the Internet, my "real name" is useless. Whether I'm "John Smith" or "Zorkon, Lord of the Universe," it doesn't really matter. My name doesn't mean anything -- not only are there the obvious cases where having one's name online is just plain bad (like you mentioned), but even when it's not a "bad idea," it doesn't add anything. If it doesn't add any value, why is it useful (other than to make it easier to track me)?
To paraphrase Bill Shakespeare, "What's in a name? That who we call John Smith by any other name would still be an idiot."