It's pointing out that it's not necessarily the socially marginalized , deviant, oppressed, or victimized who've an interest in anonymity or pseudonymity.

As with 0x44, I've a name that's to the best of my knowledge unique in all the world. That's helpful when I wish to be known. When not, not so much.

And I've accumulated a (thankfully short) list of people I don't much care to advertise my goings-on to.

Having a distinctive pseudonym for certain roles is useful. Having a non-distinctive pseudonym (or several) for others, likewise. Sometimes, on the Internet, you really do want to be a dog.

One of the complaints about Google's true-name policy is that it unfairly discriminates against people who don't have Western sounding names, or who aren't middle-class white guys. The reported retort is that they're not yet out of beta and shouldn't have to concern themselves with multi-culturalism, so people with "non-standard" or "unique" names should just use something else.