It is not possible to delete a user account, it must be deactivated.
🚨 Deactivation and reactivation are rights reserved for site admins.
Deactivate a member
First of all, you will have to access the administration page of the site by clicking directly on the name of the latter, then select the Members tab.
Select the name of the user you wish to deactivate and click on the Deactivate User button.
You will be prompted to type the word DEACTIVATE to confirm the action.
Reactivate a member
In the same menu, display the deactivated users using the drop-down menu.
Select the user to be reactivated and click on the Reactivate user button.