Meet the MapleWatch Leaf Brigade!

There are no perks.
Volunteer job is voluntary.

You don't get to choose your world. You don't get to choose your name. You don't get to tell anyone. You don't get to be seen. You don't do events. You don't get any actual ability to do anything.

It's nothing but an account you're given and told to use whenever you want but the only thing you can do it on it fly around invisibly and use a glorified alert GM button that you have to have fraps proof to backup.

It's not a game.
It's not fun.
It has zero reward.
Noone will appreciate you for doing it.
Noone will ever know you do it unless you break the rules and tell people.
And on top of that you'll have to sit in silence listening to the people bash you for doing the job, blaming you for everything that goes wrong in the game, accusing you of every "unfair" ban that occurs and whining about how little you do or how worthless you are.

If that's not an encouragement for everyone to just beg to sign up I don't know what it.

This. They do it because they want to help. They may get some maplepoints in small amounts, or a t-shirt mailed to them, but that's about it.