Though this approach is untraditional, you can see how techniques like Airbnb’s free photography check off so many growth hacking objectives. That tactic increased the conversion rate, increased the price a listing could charge, drew members deeper into the community, weeded out potentially risky or negative listings, taught users how to use the product better, made them rave about the product, and just as a bonus, got a bunch of positive publicity about it. The result was better listings, happier customers, and higher profits.