Hi – Be sure to back up your site before making any changes.
If this is a single site (and not a bunch of networked sites) you don’t have to worry about Super Admin.
If you are also an administrator you can delete them. They can not add themselves back in once you delete them.
Summary of Roles
Super Admin – somebody with access to the site network administration features and all other features. See the Create a Network article.
Administrator – somebody who has access to all the administration features within a single site.
Editor – somebody who can publish and manage posts including the posts of other users.
Author – somebody who can publish and manage their own posts.
Contributor – somebody who can write and manage their own posts but cannot publish them.
Subscriber – somebody who can only manage their profile.
Upon installing WordPress, an Administrator account is automatically created.
The default role for new users can be set in Administration Panels > Settings > General.
Hope this helps….Remember, backups are your friend. 🙂
Ours is just a single sit, I think, with a single URL. What would a bunch of networked sites look like? I presume we’d know if it were a bunch of networked sites?
And do super admins never exist on single sites?
Also one other thing I’ve thought of. Probably will never be an issue given that he has lost interest, but given that he set it up, I guess he technically owns the URL. Can that ever prove an issue?
Correct – you would know if you had multiple sites.
You can check a users role by looking here:
Administration Panels > Users > All Users
You can try to look up the owner of the domain name here:
http://whois.net/
It’s important you own the URL….and have control over the hosting.
