Does it matter if "the guy is doing proper crypto" if he is getting paid by "pyramid scheme money"? Arguably it is worse since his presence is ostensibly legitimizing the "pyramid schemes". It feels like the techie version of celebrity endorsement

As are geologists who do “proper geology” research that aids the identification of underground oil wells. Yet it’s still relevant to point out where their funding comes from when it’s an oil company.

Pointing out, maybe. But calling OP an "open source crypto bro" and saying he earn "pyramid scheme money" is too much.

Effectively what should be pointed out is "this guy makes some extremely fundamental crypto libraries that are used by millions of projects out there, including cryptocurrencies". But that's hardly relevant.