"Every banker knows that if he has to prove he is worthy of credit, in fact his credit is gone." - Bagehot
https://twitter.com/SBF_FTX/status/1589598285798707202
The Bagehot quote is not SUPPOSED to apply.
They're liars. They are literally banks with all of the drawbacks and none of the benefits. They do fractional reserve banking with user deposits.
The problem is they leverage user deposits as gambling money. These corporations can't bear to watch a pile of money sitting around doing nothing while in their custody. They just need to loan it out.