They build this picture from many other sources besides ad clicks, so the point is to obscure that. Problem is, if you’re only obscuring your ad click behavior, it should be relatively easy to filter out of the model.

I hadn’t clicked the link yet, but Concrete Donkey told me what it was immediately

15 square meters isn’t the same as 15m×15m, it’d be a little smaller than 4m×4m. Still a big hole.

The ‘S’ in IOT stands for Secure