Ash,
I don't preach (though some might disagree) so much, per se, as correct people on their assumptions, and/or guide people who I think that have the motivation towards CF. I started off as a huge skeptic (some of the exercises just seemed too special: kettlebells swings, the snatch, hand stands, etc), but after talking about it with Capt JT Williams (the "God-Father of CF in the CF"... I just made that up, so don't blame JT for that groaner....) and then doing some research, I pursued it. I did the lurking on the web site, and then easing into it (doing traditional calesthenics (pullups, pushups, air squats, lunges, etc) at a high intensity). It was very difficult, as there was next to no-one doing it in Gagetown (at the same hour of the day, in the same area... there was others doing it, in unit lines, and at lunch, after work, etc), it was hard to get into it. That's part of why I am passionate about getting people into it: going it solo is very hard. Having a training partner is critical once you get into it. I realize now how much I sucked when I was flanging around on my own. The videos, posts, Journals and all that helped, but coaching is very important, esp. as you get into the O lifts and the advanced movements. Even if it's just minor corrections, they go a long way. I am going to start video taping my workouts, so I can critique myself (a good coaching exercise, as well, as you can start learning to give the cues that your students/clients/buddies will need to correct their form).
For those that are unsure, one of the great pieces of advice that Coach has is this: doing a functional movement wrong (i.e. flanging around like I did in the start) is better than not doing it at all. Even if you are doing many of the things that CrossFit doesn't advocate (specialist movements, like 10km+ runs, "beach-body" weight workouts, etc), that is, as well, better than doing nothing, and will greatly aid you on your way in CrossFit.
You are right, though, Ash: people will find it, eventually, on their own, though that is a little disconcerting for me, as now, more than ever in the CF, people need to be in the best shape that they can, with the high op tempo, in highly demanding locations. We don't have the luxury of 2 month sea voyages (a la WWII) to "whip ourselves into shape", and there is no time on pre-deployment training to get into shape (i.e one should already be in shape, not waiting until the last minute). Too many people are in denial about their level of fitness, and then procrastinate until it is far too late.
AL