System default pending member - pending shouldn't be an option.

[robinsowell]

In member settings, you need to set the member group a user goes into by default. If you require approval, they'll go into that group after being approved. If you don't require approval, you go directly into the group.

If you pick 'Pending' and you require approval? You can never approve them. You approve them, you get a success message, you page refresh, they are still there. No matter how many times you do it- in some cases, many, many times. They stay in Pending. Because pending is where you set them to go after being approved.

I think just not having Pending as an option makes sense.