In order to have a Zemax account, your identity must be shared with Zemax. When you create an account, you agree to this in the Terms & Conditions. An account is required to participate in the community, coordinate license/support information, or to access OpticsAcademy.
If you wish to participate in the community or leave comments but have your identity hidden from other users, this is supported. All public profile information is set by you, the user. You can choose to leave it blank. If you do, then the only information available to others is your username. If you would like to change your username, you will need to contact Zemax Support using the email address associated with your account.