> The ads are valuable for a reason – they work. I'll remind everyone that from my experience (starting a web shop and also being a target of ads) there is a l

> The ads are valuable for a reason – they work. I'll remind everyone that from my experience (starting a web shop and also being a target of ads) there is a lot to be said about ads. Ubers observations a few months back was no big surprise for me. We turned off one particular network that according to their statistics were involved in most of our sales. Result: too small to measure. Same goes for my observations as a consumer: I'm fairly certain what ad I get shown is decided not by how relevant it is but by who is dumb enough to pay the most for it without measuring results.