A Terms of Service has never flown in court so I wouldn't even worry about enforcing this totally absurd, likely misinterpreted dialog from a GM of all people.
Edit: Also said GM used the words 'would' and 'may', which doesn't really mean they're actually enforcing it, not unlike how no one at Anet cared about people like me using the Combat Mode mod in GW2.
Edit: Also said GM used the words 'would' and 'may', which doesn't really mean they're actually enforcing it, not unlike how no one at Anet cared about people like me using the Combat Mode mod in GW2.