2. Since facts are more believable than claims, it’s better to express claims as facts.
In advertising, claim is often a euphemism for lie. Many of these euphemised lies are specially constructed to wiggle past lawyers and network censors. You can’t say your peanut butter has more peanuts, not without a notarised peanut count, but you can say someone will be a better mother if she serves it. At your arraignment all you have to do is plead Puffery. All charges are dropped. Puffery forgives everything. To lawyers and censors, it’s okay to lie as long as you lie on a grand enough scale. To everyone else, a lie is still a lie, and it’s almost always transparent. That’s why, instead of just asserting that BMW was a good investment, a BMW ad used the car’s high resale value to prove the point. And it did so, not by comparing the car to other cars but to other investments people in that target audience might make: “Last year a car outperformed 318 stocks on the New York Stock Exchange.”
Excerpt from: D&Ad Copy Book by D&AD