IIRC Argentina has been indebted for decades and the case doesn't seem to improve. So it is just natural that there are actual Ancaps trying to push for abandoning the country's currency for the USD (according to Geopolitical Economy Report and that interview with Ha Joon-Chang).
I guess the optics the Ancaps are trying to sell to the population is that free market and a better integration with the US's economy apparatus are going to help with investment and jumpstart the economy, but we all know the real reason is to help with capital fly and it's just a way to the wealthy interest group to prepare for a rug pull.
I have been seeing a lot of life-hacks about how pensioners move to south east Asia with their cash because the low cost of living and also to bulk buy properties and live on passive income.
You are going to have that problem with countries with questionable economic sovereignty (look at the Philippines in particular) instead of becoming a state with possibilities to do local development, you have oversea entities coming there to suck out the resources, labour, wealth and talent out of them and leave the place to die