
What's interesting is that I've heard both from a couple of the same people, but with regards to different topics: "You can't trust the disciples of Jesus to tell us the truth about him because they obviously wanted to believe he was God and the resurrection happened," and "You can't trust a Christian who used to be an atheist (or other worldview) to accurately represent atheism (or other worldview) because he does not want it to be true." The only identification of when to use which is, "whichever one supports my own view." But that is not a valid reason because of its subjective foundation. When I apply either critique is dependent totally on me, and I can change it whenever I please.