I Initially set the Field "Forbidden Usernames" to [Webmaster; Moderator], later I cleard it. However, being logged in as the correcty registered user "Webmaster" now I am not able to submit any documents. Error Message: "Username not allowed, go back…)
Besides, unchecking the checkbox "Allow Avatar" seems to have no effect: the corresponding input field is still visible to users.
Nevertheless: this is a great piece of software, keep on going!!!