[rayiner]

My dad works in international development. Our thanksgivings were 95% USAID people and the like. I never ran across the term until recently. Your link confirms that it’s not technical jargon, but rather a political activist euphemism that’s crossed over only recently:

> Carl Oglesby used the term "global south" in 1969, writing in Catholic journal Commonweal in a special issue on the Vietnam War. Oglesby argued that centuries of northern "dominance over the global south […] [has] converged […] to produce an intolerable social order.” … It appeared in fewer than two dozen publications in 2004, but in hundreds of publications by 2013.

> Are you opposed to fields of study adopting jargon to aid communication?

“LDC” is jargon, established for decades: https://en.wikipedia.org/wiki/Least_developed_countries. It’s precise and connotes the thing it’s talking about: economic development. “Global south” is an activist trick to take a neutral economic label and inject the notion of political struggle between geographic areas.