I don't see much sense in creating laws that infringe on the rights of people that want to risk life and limb to live in those moments that give them the emotional kicks they're yearning for. Having laws in place is just more motivation for these folks to go farther into idiotland than they normally would.
There already are an infinite number of ways in our society that allows for us to seek the thrill of "almost" killing ourselves, including riding overpowered two wheeled screamers, buck nekkid, if need be.
It's when these folks jeporadize the lives and limbs of others in their pursuit of freedom of choice that I get upset over, especially when their actions threaten my wife and kids, and especially on our public thoroughfares.
I ride a cherished Harley myself, but I do ride it responsibly. I got my ya-ya's riding dirt bikes (or used to, as I do have kids and a mortgage to fret over) where I'm not threatening anyones' health except my own. But I have seen guys on rice rockets passing me by on the freeway doing wheelie's and having them almost crash in front of me because they didn't take into account how strong the wind gusts were at the time, or zipping through traffic over 100mph and then catching up to them through the traffic jam they'd caused from crashing themselves into things that got in their way.