@chrisburnell For server-side code I think it's a relic of times gone by and it has stuck around for some reason? Fortran had a max line length for example so I guess terse variables helped stay within the boundaries.
Funny to see it come back with front-end markup, I guess to reduce bytes downloaded? Like bootstrap and tailwind have all their abbreviations like sm, lg, mb, py, etc. I don't like them to be honest.