I haven't heard a lot of stories about people crashing at an autox, maybe one or two instances of people driving into lakes, but those are generally limited to an elite group of autox professionals.

There is a huge difference between crashing a race car and crashing a daily driver though, I'm sure you know that well. It is the reason I don't want to drive entombed by walls at hialeah....body and frame damage is a lot harder to fix than busted suspension. There are a good deal of people who do not have as much sense though who also cannot necessarily risk their daily drivers in such a manner. These are the people that need to be 'protected from themselves' (we should also confiscate their beer and cigarettes!). Those are the ones who won't take necessary precautions to avoid killing their cars (/themselves?) and will scare insurance companies away from the sport. There are a lot of people who are familiar with drifting and its consequences. The people who read the message boards and want to give drifting a spin are those who need to be watched the most. They will be most susceptible to the 'red mist' feelings of invincibility.

How do we keep them from crashing? Restrict registration to experienced drifters...but there is not a terribly good way of judging 'experienced' at the moment.
...or shy away from unsafe venues en masse, it could only take a single rogue 'promoter' to ruin such a method though.

Of course, there are the sadistic bastards whom comprise the majority of the drifters I've met who will jump on their hood and strike a valiant pose after an intimate session with the wall, they should just be institutionalized to a remotely located purpose-built drift track...

...now all I need is a drift-bitch so the walls will fear my car, not the other way around...