Yup. Irish person here. Hence how I know. Now, I'm not saying that the way IW is doing it well, or that PPS numbers are a good approach. But the idea that "How

Yup. Irish person here. Hence how I know. Now, I'm not saying that the way IW is doing it well, or that PPS numbers are a good approach. But the idea that "How will they know?" is some sort of unanswerable, impossible question is silly.