Is there any way to hide the username from hub?

[BrandonGuo]

After setting the user "Profile visibility" to "Organization" only. 

When a public user viewing the open data details, it will show as "Private Member" from "Private Organization"; but in the search result, it still expose the username to public. 

Is this a bug? Or designed this way? 

Since user can't change it's username, is there anyway to display all open data owner as the organization name?