Not sure why people are having trouble seeing the difference between this and typical multi-boxing (which seems like it would be very difficult in this game considering all the required movement). If the PLD in question were just multi-boxing then there'd be absolutely no reason for the WHM to 'accidentally' use benediction on another player simply because the other player used that word in a sentence (not even the first word of the sentence). Further, it would be absurd for the PLD to admonish the other player for saying 'benediction', as that's not at all disruptive to normal play. Clearly they were using a simple script to control the WHM with chat commands (no idea why they didn't just use a LS that would be private to the two of them, but perhaps that was the original intent) and that's definitely against the ToS.