When you're working on a new product, you don't want others to steal your idea and release it faster than you. Then make it copy proof by engaging a community around your idea.
How can a community of users protect your project? Well if your product is well appreciated and you're offering a service that truly speaks to your customers, a loyalty relationship will soon happen.
Grow your community and with time you'll have a strong protection against anyone trying to do the same thing as you. Even with a better and cheaper product at your competitors, your customers will defend you and keep promoting your product... as long as you make them feel proud of being part of this community.