It's not an irregular thing for a lobby leader to have set up reserved slots for friends, only to have his friends then inform him that the password is not working; due to a typo on the leader's part.
I'm a klutz so I do it from time to time, but I've seen most of my friends make the same mistake so I'm certain I'm not alone in this.
Sometimes it's due to caps-lock, which is easy to find out, but if it's an actual typo the PW becomes anyone's guess.
This leads to having to tell your friends to "Get ready 'cause I'm about to unreserve the slot!"; but the many hordes of Ninja-spy and sniper-mains will probably snatch that spot, and kicking them will always lead to tears and/or hate.
If it's not too much of a hassle to incorporate, having the password to the slots visible to the lobby leader seems like a good idea to me, somewhere around where the "close the lobby" button is located, or wherever you see fit.
Just a little suggestion, feel free to shoot it down; but it's something that I know I would appreciate.