Yep it was Saifedean
https://saifedean.substack.com/p/anatomy-of-the-milei-ponzi
Also:
"It is true that he has made the names of Ludwig von Mises, Murray Rothbard and other thinkers of the Austrian School known to a wider public. But his knowledge of their ideas and theories is superficial and flawed, and his praise is therefore double-edged. In any case, we can only advise the public not to regard Milei’s statements on economic philosophy as authoritative...
...it is not enough that he pursue liberal goals with his policies. Rather, the political means must be objectively suitable for actually achieving those goals. This should be self-evident, but it is often disregarded in politics, as Ludwig von Mises repeatedly pointed out. Milei’s policies are a case in point."
- Prof. Dr. Rolf W. Puster, Prof. Dr. Jörg Guido Hülsmann and Prof. Dr. Hans-Hermann Hoppe