I listened to the whole show, and I thought they spent way to much time on Landmark. It wouldn't have been too bad if they looked at other cults, like network marketing. I think Ian spent way to much time insulting Mark and not enough presenting evidence. After the show I thought it didn't sound too much like a cult to me, then I went online and saw the videos and it completely changed my mind. It is definitely a cult, and it really is too bad Mark is involved, but Ian could have done a much better job of proving it was a cult by being less insulting and more informative.
I knew a couple of guys since high school, I climbed with them all the time; they joined a network marketing scam and haven't shut up about it since. These things really do ruin the lives of the people involved. They each joined about two years ago now and have spent thousands of dollars on products that they mostly consume themselves as a sales pitch to get other people to buy it. They have made some money, but not nearly as much as they have spent, and yet they desperately cling to this idea that it will pay out eventually. I have tried convincing them, but they insist that it is me who needs convincing. Anytime we have gone climbing in the last few years they rave about how great "the business" is going, they always call it "the business", and then proceed to slam six or seven of their energy drinks throughout the day while yelling about how great they are and how much energy it gives them so others can hear and maybe become interested. I haven't climbed with them in months because I can't stand being in an advertisement for overpriced crap sold online. It really does alienate people.
Sorry about the slightly off topic rant.