ok, usd is terrible for cross border micropayments

As someone who uses Wise out of necesity: no, it's not better. Wise can freeze my account whenever they want. They can go out of business any day. Fees can change over time. Transfers can take a long time (ex. wire transfers can take several working days). Crypto is a far better solution in my experience.

All those problems also apply to the exchanges you use for crypto.

Unless you are thinking about a hypothetical future where you can directly use cryptocurrencies to pay your rent and buy your groceries.

>All those problems also apply to the exchanges you use for crypto.

Yes but they don't apply to using crypto for cross border payments, which is what the poster was referring to.

Transferring crypto across borders without exchanging to/from local currencies or USD is of course trivial. But it's also useless, since most people can't pay their rent with crypto.