Nice how you left off part of my sentence. Targeting ads is good for (some) advertisers (whether it's good for customers is debatable) but I said "good for the

Nice how you left off part of my sentence. Targeting ads is good for (some) advertisers (whether it's good for customers is debatable) but I said "good for the ad industry". If a/b testing increases conversions all that demonstrates is you can get more revenue per ad dollar. Whether any "good" occurs is an entirely different matter. You might be selling penis enlargement pills.