‘Anprim’ is short for anarcho-primitivism, people who think advanced technology was a mistake and we should return to a simpler way of life. This ranges from ‘weird agrarian tradlife fantasy’ to ‘hunter-gathering was the peak of human society’, but in either case, many of the technologies which enable those of us not born with perfect genes to survive past the age of 20 - including many anprims - would be simply unavailable.