I've seen a bot in RA as well. She used to frequent FA, but with the recent introduction of the Dishonor mechanic, she vanished.
Her style of botting was quite simple; she operated a PBAoE build, but her behavior was clearly bottish after I observed she always does the following steps:
1. She targets an ally and moves to that ally.
2. She casts Flame Djinn Haste.
3. She targets an enemy and moves to that enemy.
4. She casts Inferno.
It was glaringly obvious she was a bot after the first few times, because she'd sometimes use Inferno in the middle of nowhere, and she would sometimes run back and forth between ally and enemy if the two were too far away from each other.