Bryan -- here's the short version:
1) Crossfit as a workout approach (meaning: mainsite and variants) creates an unnecessary amount of serious injury risk for the fitness benefit it creates
2) There are much better workout approaches for the target populations of
a) People just trying to get fit and
3) Crossfit as an organization is vile and engages is vicious character assassination (Dan John, Robb, Greg, Mark Twight, etc, etc.).