"Quality" in this Peretti's context would be "effective in selling a product": i.e. it's what advertisers consider to be quality. I agree with your point thoug

"Quality" in this Peretti's context would be "effective in selling a product": i.e. it's what advertisers consider to be quality. I agree with your point though: from a user's perspective there's no such thing as a quality ad: ads are inherently bad.