I think what's happened is Christians are afraid of not looking cool, so they do something stupid to look hip. It's like Christan's who drink beer just because they're trying to impress their non-Christian friends with what they consider rebellious nature.
And in case you are wondering what Jesus would Tweet....I don't think he would; I think he'd be of the nature of getting away from his computer screen and actually doing something with his life. Me? I'll stick with being lazy, and you can catch my Twitter feed here: @scott_douglas.