Re: Accurate Ads
From an end user perspective, targeted advertising simply does not work, for example:-
I booked a hotel for a weekend in London, I chose the hotel in Last Minute but went straight to the hotel's website to book it as it's very often cheaper than the "bargain" sites.
From that point for the next three or four months, on any site that served targeted ads, I received an advertisement for the hotel that I'd just booked, for the same weekend I'd booked.
Now if targeted advertising actually wanted to be useful the ads I'd have seen would be for events and/or offers on in London over the weekend I'd booked. For example, £5 off Tower of London entry or a advertising a food festival in Greenwich (this was on at the time).
Targeted advertising just doesn't work in any useful way.