Creating a champions program allows and incentives your customers to help create content. It is difficult to come up with the right things to do to incentivize your customers because there are so many things to do. Humans in general are motivated by different things, but you have to start somewhere. Yes, it is stressful at times, but start small and build big.
Take a look at the Imperva Champions Program here. It's in very early stages! https://community.imperva.com/champions-corner