@Mudlark@bark.lgbt @Haijo7
Huh, thanks for making me aware; like probably many non-native speakers, my one and only encounter with the word has been through the mixed blessing of watching Pulp Fiction.
GIMP doesn't sound like any word in my language. So I never thought of looking up the acronym as if it were a real word in an English dictionary. At most, it figured in my head as two words: an acronym and an unrelated indecency (from Pulp Fiction). Your comment finally made me look it up.
My only physical dictionary doesn't even list the word. The first definition on both French and English Wiktionary is ‘A narrow ornamental fabric or braid of silk, wool, or cotton’. That's also the first hit I got on both OED and Collins Dictionary. But yes, they and other dictionaries do of course also list the other meanings, which obviously make for poor names.
(Apparently the word git comes from ‘an illegitimate child’, i.e. bastard? Dunno if that qualifies as a slur to you. I had to look up slur too now, but the main definition seems to be ‘a shaming insult’, with the group-targeting variety as a sub-definition.)
Could they have chosen a better name back then? Obviously.
Would I mind if they renamed today? Not at all.
My main point, which I didn't emphasise well enough, was really just that ‘a lot of people’ aren't ignorant and insensitive for missing the context, we simply don't speak your language. The acronym carries no baggage outside the Anglosphere when people learn it from a splash screen saying GNU Image Manipulation Program (which, yes, they probably should change anyway).
In dated Northern English, it used to mean neat or elegant. In other languages, it's just letters for a software.