Just realised I probably should submit my question in this form.
I feel like the username display is not consistent in hub pages. Is there any setting to change this? For example, hide username from Hub search results?
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 exposes the username to public.

