Or at least, not enough subjective value for that person to outweigh the cost. Paywalls are a great screening filter that actually tests if people want to spend any money or time on an article, or merely clicked through from force of habit.
So? Ads are a screening filter that tests if people want to spend time consuming ads to consume content.
What's odd is when people here complain of screening by ads because they'd think screening should instead be by money. It is proper that the choce for the publisher's site is made by the publisher and for the reader's visits is made by the reader.
