[vocram]

Switzerland did that for a few years in 2011, not to help another country but to avoid CHF overvaluation.

[lawlessone]

Yes, and China allegedly does similar, but in both cases it's to help themselves.

[mindslight]

One of the butchers in the Trump regime wrote a book on how we need to devalue USD so we can go back to being competitive making shoes and all the other sort of unskilled factory jobs China did before they developed. So I guess one could consider this in "our" interest as well.