These people have a death wish. K2 has a 25% death rate.
True but as Zathras pointed out, Annapurna is even more dangerous with a 41% death rate. I heard one climber say of Annapurna that the whole mountain is nothing more than a giant avalanche waiting to happen.
If the climbers wish to risk their lives for this, fine. The ones that I feel for in these dangerous adventure schemes are the professional rescue personnel who have to risk their lives to get the adventurers out of trouble.