serever close link to (PLAYER)

I had problems with Waitforauth set to 20, so as in another post here I set it to 0.

But when a player tries to log back in we get to enter the password and the server closes the link to the player.

But if I set the Waitforauth to 1 he can log in.

What is Waitforauth 1 and is it safe to use.

All it does is put players into a tutorial area, where it waits for an admin to authorize his/her chosen name. If it crashes there is something wrong with the tutorial area (eg. it doesn't exist).