Homestars.com is a scam. Why? As an employee of a contactor listed on this site, Ive personally witnessed and participated in posting at least a 50 10 star reviews for my employer. All you need is a valid email. Most of the reviews on there are not actually satisfied customers but the companies themselves. Very misleading and in my opinion wrong.
*Its not a reliable place to find a contractor. Its better to ask friends or family for referrals.