One would expect person to refrain from that kind of activity after suffering that kind of damage. Golota had a similar injury inflicted by Tyson and came back as well.
Ironically his last opponent got hit and just kept insanely diving in hands down and face first. Maybe he was striving to attain Nirvana via bludgeoning. The announcers humorously compared him to a ridiculous mix of Whitaker and Texas Cobbs. He would make some Whitiker move and then dive in oriental face forward. Then his head would seem to get temporarily stuck in the position it had been forced into by the punches while his seemingly detached body moved forward to get some more. Weird!