You're forgetting that those ~100 btc came from winnings on PD, so there isn't any real loss there. And for all we know, the amounts he's playing with, even tho
they are very high in our eyes, could present very little to him.
I was present in irl casino when a guy won ~ 27 000 eur and didn't even blink on it,but just continued on playing, so it really depends on how deep your pocket is in the end.