15.3.1 Disabling/Banning
In order to disable or ban an existing user - not allowing them to login to the site - you must log in to the administration panel and open the User Manager. In the user list select the corresponding user by clicking on its name. In the newly opened panel, set the Block this User option to Yes and press the Save button.
Please note that this method will not delete the user account but will only disable it. You can always re-enable it by setting the Block User option to No.
15.3.2 Deleting a user
We don't recommend deleting users - it can have an impact on legitimate content that they may have created in the past. We recomend Blocking their accounts instead.
In order to delete a user from your database, log in to the control panel as described above and choose the User Manager function. On the opening page, select the checkbox to the left of the user's name you would like to remove and press the Delete button in the toolbar.
Note that there are a number of more in-depth access rights that can be used to make the system even more flexible but, in a straight-forward website such as most small sites, these choices and configurations above are probably quite adequate.