Apparently WOT doesn't like this site :/
http://www.mywot.com/en/scorecard/lockerz.com#page-3
There's a WHOLE page of bad ratings + more
Also:
http://www.google.com/search?hl=en&source=hp&q=Lockerz+scam&cts=1256715805034&aq=f&oq=&aqi=
An elaborate story on how this is a "hoax":
http://www.alexa.com/siteinfo/lockerz.com
Hoster of lockerz.com:
Amazon
In their Privacy Policy:
We may automatically record your IP address and use it to help diagnose problems with our server, administer and improve our Website, and gather broad demographic information about our Members.
We use your information to personalize your experience, analyze usage, respond to inquiries from you, notify you about new featuresand special promotions, fulfill your orders, provide customer service, and to support your use of the Website and its features (including inconnection with Website maintenance, backup and analysis). We may collect and report to third parties (such as content and service providers)information about our Member demographics (e.g. if half of our Members were women between the ages of 15 and 19, we may provide that general information to a content or service provider)
I also find this:
We will take steps to maintain the security and confidentiality of your personal information; however, we cannot and do not
guarantee the complete security of personal information
This site is not very trustable to me.
. All you do is sign in and answer a question. And its all an opinion so, it can't be wrong. You get points for typing a word. And also for signing in. And, I saw some people get prizes from it! 
