Unless I miss my guess, this is for a support channel that is moderated. Users are voiced one at a time in the order they are joined so that they can ask a question. Once answered, they are kicked by the bot. The commands let all ops easily help out without trying to keep track of who came in first or whatever.
The best method would probably be using a text file. It's the easiest, anyhow.
Here is a link to one I made for someone else awhile back. Look at the full "updated version" script in the linked post. You can ignore the rest of the post and thread unless you feel like looking it over.
