Idea to counter botters

[wudup]

As we all know an afk kicker would be awesome but there are some people who could bypass that by running towards a wall or something. my idea is an add on to the afk kicker known as the bot kicker. any player can do this, they simply right click on the person in question and press the "are you a bot" button or something, what it does is place a basic math problem on the screen and if they can't solve it in 60 seconds they get disconnected. in order to prevent maximum trolling with this you can only ask this to the same player once every 10 minutes.

Sounds like a solid way to keep botters from hogging valuable spots right?
Any other ideas or easy solutions you guys could think of?