Measure the growth and vibrancy of your community and increase the number of active contributors on your site
Reduce support costs.
Create a culture of many-to-many support, allowing your support team to focus on major issues rather than working on questions that other developers could answer.
Share code, documentation and ideas, regardless of location and timezone. Your teams will be encouraged to engage with built in gamification.
Create advocates for your company.
Recognize and reward quality contributions from your community, giving rewards and status recognition encouraging others to strive for similar success.