I think pretty much every industry and field quickly develops it's own stock of acronyms, nicknames, jargon etc. This can feel alienating to "outsiders", which is why people don't like it, but I think its pretty necessary (and inevitable). If you're working with a set of concepts, processes, software everyday, developing a shorthand way of talking (and thinking) about them is a big timesaver both in terms of communication and mental effort.