> Using them among other non-native speakers even seems snobbish and counter-productive. Non-native here, but I have an opinion on your choice of examples. Th

> Using them among other non-native speakers even seems snobbish and counter-productive. Non-native here, but I have an opinion on your choice of examples. They aren't posh or counter-productive, on the contrary, they are just specific to fields under-represented in popular culture (political history, fantasy/longevity research, music/acoustics). I don't see any obvious ways to convey the same meaning using more common words.