Rereading you last post it makes it sound like you are just cleaning weekly, not cleaning up poop when it comes. This would be the reason why your room smells. Start cleaning up the day they poo and it won't smell so bad in the room.
I think this message is just you back peddling a little to try and change the fact you don't clean when needed. Remember this doesn't just make it smell it could also cause scale rot.