[throwaway2048]

You wouldnt have to tamper with existing data comming from site visitors, you could just simply generate fake visits. That would be much much harder to check for. You could of course do that with the current model, but it requires a lot more resources (distributed IP addreses to come from being the largest issue).

Since this is specificly targeted at getting around adblocking, the ad networks wouldnt be able to rely on cookies etc because the same types of visitors will often block/clear them.