Admin/mod profile editing, optional website field, social links button

I have a few suggestions about member profiles.

1. Editing a profile as admin/moderator when required custom fields are empty
   I use required Custom Profile Fields (date of birth and gender). When I edit a member's profile and one of these fields is empty (for example a member who registered before the field became required), I can't save my changes. I only get an error message. It would be very useful if admins and moderators could save another member's profile even if a required custom field is empty. Members editing their own profile would still have to fill the required fields, so nothing would change for them.

2. Option to disable the native "Website URL" field
   In my community, social network links are disabled in the settings, but some members get around this by putting a social network link in the "Website URL" field. It would be great to have an option to disable this field, or to manage it together with the social links settings.

3. "Add social links" button still visible
   When no social network is enabled in the Profile Social Media Links settings, the "Add social links" button is still displayed on member profiles. It would be more consistent to hide it in that case, so the profile follows the admin's choice.

Thanks!