I am one of the ones who has stopped using Greenpoints after they have discontinued their rewards of Frequent Flyer certificates.
I almost signed up for the 40,000 greenpoints email offer they sent me if I should sign up with Sprint. Thank goodness I didn't take them up on their offer. They use to be a pretty good sight. Not anymore.
Oh well, that's just one less site I have to visit. I have too many others to visit, anyway.