I was originally going to use the site to start a survey site. I really didn't have a good script, and basically lost interest. I even made this video for it. I wouldn't mind selling the domain.
YourFreeCode.com is the type of domain that an interested buyer would want if you target the right audience especially existing sites that perhaps run coupon and voucher codes. The demand is very strong. I've used the appraisal engine at SecretDomainAuctions.com/Value And the domain is estimated to be worth $1,131 USD Full report can be seen here: http://www.secretdomainauctions.com/Value/www.YourFreeCode.com