> measured by nearly any metric you want to pick Which in conclusion should question the quality and meaningfulness of such metrics. Of course conversion rate

> measured by nearly any metric you want to pick Which in conclusion should question the quality and meaningfulness of such metrics. Of course conversion rates are only meaningful if you indeed have any ads. That doesn't lead to any indication of positive "user experience", which admittedly is another soft term. Sure, if I go shopping, I mind ads far less. Although I find them to be mostly devoid of information.