It's cheeky. it’s disarming. It’s memorable.
Psychologists call this the Pratfall effect, and it applies to people and brands.
You see, when you admit your flaws people tend to like you more. Because it’s a demonstration of honesty. And this makes your claim more believable AND makes your brand sound a lil more human.
Pro Tip: If you use this technique make sure you write a first paragraph that expands a lil more the claim you made in your headline.