Three years ago, you could drastically reduce your cost per click by just running a ton of ads. The mainstream pay-per-click vendors, experienced with Google, applied their same techniques to Facebook — multiplying tons of ad combos by headlines, images, and body copy. While that technique was positioned as smart optimization, it was really spamming the system with thousands and thousands of terrible ads. If a general message against a particular audience wasn’t effective, making 10,000 variants of the same thing wouldn’t matter.
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