That's my big problem with it. From what I've read and heard second hand, there's often not a lot of form instruction or correction at some of the Crossfit "boxes". People get "thrown into the fire" whether they're ready or not. Something can be challenging or even grueling, but still be safe. That said, I'd rather see someone pushing themselves at Crossfit than peddling on a bike for 25 minutes at a leisurely pace while reading a magazine and thinking that's a real workout (assuming that's not all they can physically do). I think finding a workout and sticking to it is very admirable and I don't mind when people post results. But with Crossfitters there's a whole 'nother dimension. it's like they're trying to recruit people into their cult, er, workout. Conversely, as mentioned above, the people that constantly post negative stuff about the workouts are equally as annoying. It's not the workouts that bug me it's the constant selling. Kinda reminds me of when my brother wanted me to switch long distance service.