On the one hand, such things look unjustifiably extreme and even dangerous, on the other hand, I understand that such people simply need excitement and such emotions, they simply cannot live differently. Of course, many condemn this because it could be potentially life-threatening. But you can look at it from the other side - the main thing is that it does not harm the lives and health of other people. Otherwise, they can do whatever they want, it's their own business. But sometimes these people do something incredible and I find it interesting and even exciting. The feeling of adrenaline always gives some positive emotions and that is why I think that it is necessary. But of course within reasonable limits.