Again, the limitations with funding with money aren't a tech problem. The limitation aren't "regulations", or how "fast" you can send money. They're a legal one. There's literally no obstacle in wiring some startup some money. Where an obstacle DOES exist, is in you being able to credibly defend a claim on that equity in a court.

Imagine the following situation:

You: "I own 10% of the startup"

Judge: "You have no contract that proves that...."

You: "But I sent crypto instead of money!!"

Judge: "Oh in that case...!"

It's like when the word "crypto" is involved, people immediately surrender any critical thinking :-|