I'm pretty sure - he was donating 50% of his salary at Jane Street prior to starting his current crypto endeavors and has pledged to donate basically everything

I'm pretty sure - he was donating 50% of his salary at Jane Street prior to starting his current crypto endeavors and has pledged to donate basically everything over the next few years, of which he's already started. Initially staff at his companies had to donate regularly, 1% of fees from his companies are donated, and he advocates others in the space to do the same. The guy basically lives in his office eating fried veg and rice playing League of Legends in his downtime. That money is being made for charities and predominantly comes by enabling trading, which I don't believe is ethically wrong (his general good, in a utilitarian sense, is definitely higher than any qualms one might have against crypto anyway).