Nobody's perfect and that's just fine, but there are at least a few areas where we could all stand to improve. That would be great if we could just ask what's wrong with us and get an honest answer, but nobody wants to tell you how awful you are. That's where Failin.gs comes in. It's a webapp that will let your friends and family anonymously post their issues with you so you can be aware of them without taking it personally.
Failin.gs isn't trying to incite an anonymous, personal flamewar against you. Once you create your profile and link it with Facebook or Twitter (if you want—you don't have to), you can send it to your friends to get personal feedback. As your friends type, Failin.gs will remind them to be kind and constructive rather than mean. You can then check your profile for new comments and sort them into different bins (I agree, I had no idea, and I disagree).
That's the basic functionality of Failin.gs. If you're looking to improve yourself and ready to hear it like it is, this is a good way to do it. Many years ago I went to my friends and asked them what they thought was wrong with me. I can tell you from experience they will never say it to your face, no matter how much you assure them you won't get mad.