There are many valid criticisms of Libra, even if we restrict our view to the code. This article contains none of them.
However, use of a BFT consensus algorithm, newish crypto libraries, and missing but promised features in an unlaunched product are not reasonable criticisms.
BFT algorithms that scale well (Libra's will, that's one thing Facebook is good at) are great for public financial networks. All large companies end up implementing their own crypto libraries and for some (Google, Facebook) this ends up a net positive for the open source community.
Consumer protection will be there, Facebook is not going to knowingly violate local regulations in such an obvious way.
However, use of a BFT consensus algorithm, newish crypto libraries, and missing but promised features in an unlaunched product are not reasonable criticisms.
BFT algorithms that scale well (Libra's will, that's one thing Facebook is good at) are great for public financial networks. All large companies end up implementing their own crypto libraries and for some (Google, Facebook) this ends up a net positive for the open source community.
Consumer protection will be there, Facebook is not going to knowingly violate local regulations in such an obvious way.