Botting
From Flexible Survival
Botting: Using client side triggers, timers, or other tools to play the game when you're not there.
Botting was disallowed, but as of 6/11/2012, this has changed. If you are going to bot, type botmode on.
For more help, see botmode.
While botmode is on, combat will proceed slower, but you are permitted to bot as long as you desire. This allows those who prefer to bot to do so, without being a drain on the system resources for those who are actively playing the game.
It is against the terms of service to bot without botmode on. Please don't do that.