I'm just wondering is it possible to over throw mods cause people say it possible other say it impossible so answer me
You've heard a lot of stupid things then. You can't overthrow anything. If it gets out of hand to the point of "revolting" you will get silenced. This game isn't a democracy.
Nope. But you can email the devs at support@athinkingape.com or use feedback if you're unhappy with a moderator.
Moderators were chosen by ATA when they applied as the position in KaW. The word "overthrow" in this mean, could compensate as many different meaning. If you mean to take them off the seat of power they are on, that is impossible with normal KaW players. The only way the Moderators wont be Moderators anymore is if; 1. They lied about their age and got away with it for a certain period of time. 2. They are doing a poor job. 3. ATA hates them 4. They resign.
You can do what you want. If a mod is not performing there duties. Or is showing favoritism email devs they will have to follow through with your email as long as it is not ridiculously insane.
The correct is is no. You are not "aloud" to overthrow mods. Whether or not you are allowed* to overthrow them is a different opinion...