Header bidding also means that websites blast your page visits to every provider that might want to bid on it, instead of "only" to the ad exchange and the winn

Header bidding also means that websites blast your page visits to every provider that might want to bid on it, instead of "only" to the ad exchange and the winner. Just a massive surveillance spout to anyone at all. Just because Google is against something doesn't mean that it is good for us as consumers.