He is for, however he is a radical libertarian with (right wing) anarchists influences, therefore he would probably support the unregulated/libertarian side of crypto, which you and I already know: self-custody, trustless and frictionless systems, and decentralization...
Howeeeeeeever, he is for dollarizing Argentina after 4 consecutive years double-digit inflation, plus de-banking the monetary emission by shutting down their central bank... Oh my!! Only God knows what's to happen there, even though it will be interesting to witness.