The whole thread is just plain dumb. As much as I don't wish a horrible accident like that on anyone, I have to say that Brock and his supporters had / have it coming. Just because you can purchase a vehicle and a bunch of aftermarket parts for it, doesn't mean you have the skills to make good decisions on what to do with those parts, or to drive the vehicle safely once the parts are on it.
I remember a similar thread on some Subaru forums a couple years back where a guy totaled his STI. He blamed the accident on his tires -- something about them not having the wet traction they should have. He didn't get any slack like Brock seems to. This type of attitude is a disturbing trend (I've seen it in other places too).
If you can't safely handle your vehicle as-is, under reasonable conditions, then you are a hazard. People slamming on brakes is an everyday occurence.
If you can't stop your vehicle faster than another vehicle that weighs thousands of pounds more than yours does, then you are most definitely a hazard.
I have very little sympathy.
D-Rock