Back when Andreessen Horowitz was investing heavily in ICOs I realized that their business was essentially offering their LPs legal access to the ground floor of scams. Every time one of the ICOs turned out to be a fraud they could say "We had no idea, we're one of the victims!"
This, in turn, probably led directly to FTX. They did laughably bad diligence on FTX because they needed to do bad diligence in order to retain plausible deniability.