The site does have several reviews online. Just recently they updated their payment on the site and added a new webpage that you can see the new pay scale. In the past you only needed $10 to cash out on the site, however, you now need $30 to cash out. You are also paid a higher rate now for answering questions and be up-voted with a +1 on your answers. Each member here on the site needs to participate if you are to earn extra money for answering questions.
You are not paid to ask a question or even leave a reply to an answer that a person left you. However, you can always add a thank you to this person and they will earn. Afterward, when you give a response to a question, the person will pay you back with a thank you. This way you'll earn 14 cents on your answer, instead of just 10 cents. Here is one review I found online about the site and it was recently updated with the new information and the new pay rate on the site. You can go here to read the full review. There aren't too many reviews about this site online and I'm not sure why.