>>keepam+(OP)
I know nothing about climbing. beyond the straight flex of "I could die if I make a mistake", is there a point to doing this without safety equipment?
>>prein+X2
Money! He has a family to provide for and his unique skillset is "climbing below his grade but with no support", so that's the service he offers the world.
(I get that there are more motivations underneath free soloing in general, but I doubt Taipei 101 with a million cameras is the climb he'd choose if it were not for the money.)