[throwaway248329]

Yes. The governments would still be able to borrow, but they won't be able to do it in an unchecked manner.

Since the lender would know that they are not guaranteed to get their money back at the expense of the borrower country's population.

[lottin]

If anything, the inability to print money would make governments more dependent on borrowing, since the ability to print your own money eliminates the need for borrowing.

[throwaway248329]

Governments would try to borrow more, but would there be enough willing lenders?

The endgame is forcing governments to be more fiscally conservative and generally less bloated.

[lottin]

Different people have different preferences with regards to the level of government spending. In general, the actual level of spending will be some sort of average of society's preferences. You, as an individual, will have a hard time imposing your individual preferences about government spending on the rest of society, and "crypto" is not gonna help you achieve that goal in any way shape or form. That doesn't mean to say government spending is unconstrained. Of course, it's constrained, by the government's ability to tax and to borrow, but generally not by its ability to print money. If governments were to lose their ability to tax, we would end up with a bunch failed states, which is a considerably worse situation than having "bloated" governments. And their ability to borrow depends on their creditworthiness. To me nothing suggests that crypto-currencies can have any impact in any of this, to be honest.