[EquinoxWorld]

From what I understand it may have been that your admin set a "site default" for profile customization. As admin one can simply edit your own profile and set it as default site wide for all users. I have had some trouble myself with profile customizations and more than one theme. What I would suggest is (if your admin) go into your default theme then your profile and revert all changes made and save that as your site default profile, now when you go back to your other custom theme the profiles off all users should look "not customized" for any new members that joins. For users that want to revert back to a "blank" or not customized profile they can now simply click on default and save.