Yeah, I admit, the carfax analogy is not the best one. We don't really use it anywhere on our site - mostly because it's not really accurate. Your wording is much better and truer to what we're building. Can I use it? :)
Please, use it or anything else that suggests you are not using Oceanian MiniPax/Google levels of insight into my activities to tell prospective employers that I spend too much time on HN.