Disabling a wiki account
From U of M Internal Medicine Wiki
Because the account is used to track changes in the history of any article edited by a user, a user can not be deleted. However, an administrator can block a user from editing as follows.
- find and copy username on Special:ListUsers
- click on Special:Block
- enter user name
- under expiration, chose "indefinite" in the dropdown box.
- check the boxes that prevent the user account from doing anything furhter, and make sure you don't check the boxes that affect IP addresses
- Click "Block this user"