After learning about Crowdtap, I went to their website and found two ways to create an account. I could either use my Facebook account or use an email address.
Crowdtap was attempting to filter out automated bots and other people who were not interested in providing valuable feedback but wanted to make a quick buck.
Each time you complete a mission, you earn a certain number of points. Each mission will provide you with a different number of points, which are identified ahead of time.