You use an alias or a persona to mask your identity, just as you use encryption to mask information. Keeping something intentionally hidden, either via an alias or encryption, is not dishonest nor unethical.

I do not prize winning. I'm not sure who is "winning" or "losing" when I decide to not publish my name. I'll note that I use my real name and attach my real identity to lots of things. I just don't agree that people who choose to mask their identity through a plausible persona are somehow walking an ethical tightrope. They are entitled to use a fake name.