You can prevent users from making their full name private by removing the Private checkbox next to the Full Name profile field. Please follow these instructions to do so:

1. Log in to your Website Toolbox account.
2. Click the Integrate link in the main menu.
3. Click the Custom Code link.
4. Paste the following Custom Code code into text boxes below Forum Head Tag HTML Code.

<style>
#registerEditProfile input#name_private, #registerEditProfile label[for="name_private"], .wt-user-registration #inputname + .col-xs-offset-0, .wt-edit-profile #inputname + .col-xs-offset-0 {
    display: none !important;
}
</style>

5. Save your changes.