You're able to disable the username and title under the magazines in your WEBKiosk.
Go to "My WEBKiosks".
Then click on "Tasks" -> "Edit Design".
Go to "MY CSS Styles".
Click on "Tasks" -> "Edit".
If you only want to disable the username, add the following code to your CSS.
.document_widget .yp-grid-headline-4 {
display: none;
}
Sample:
| Before | After |
Example |  |  |
If you want to disable the username + title, please add the following code instead:
.yp-grid-element-content a {
display:none;
}
Sample:
| Before | After |
Example | | 
|