1. https://en.wikipedia.org/wiki/Use%E2%80%93mention_distinctio...
Also, C-3PO is short for See-Threepio, and is used for interacting with organics, while R2D2 is short for Artoo-Detoo, which is used for interacting with digitals and arguing with C-3P0, while TWKE-4 is short for Twiki, which is used for saying BDBDBDBD, which is short for Bee Dee Bee Dee Bee Dee Bee Dee.
Jargon has a slightly pejorative sense, just like in the article.
The article does not say, "Do not use the correct words for your discipline." It says, "Do not use meaningless words or overdramatize."
Not necessarily. Jargon is not technical. But it is an emergent feature of language in semi-isolated groups. Things get nicknamed, inside jokes stick, and from the outside it looks performative while inside it’s quite natural. That it subsequently often takes on a performative element, in particular by new comers, is an in-group mechanism, but it’s not always useless as a signalling mechanism. There even seems to be an in-built sense of disgust with respect to overly performative jargon that keeps the system in check most of the time.
Always consider your audience. If you're writing casual communications for a mixed audience, ditch the jargon and use simple words.
If you're speaking to professional peers on business matters, use the precise language. Don't unnecessarily complicate sentences or use complex words when simple words are equally effective, though.
That's unnecessarily cynical. It certainly can give off that impression. But it is also a shortcut for people who work together in a specific domain to be more precise (or more general) than would be implied by non-jargon speech. So to me those things in the sky are just clouds, but to a meteorologist they might be stratocumulus or cirrus.
Another case, a similar one, is the stickiness of obsolete language in a certain domains. I've never used the word "cloture" in a sentence,* but to use it is faster for those who need it than to spell it out. In law, some obsolete words not only carry specific meaning but can call back to existing case law.
For HN, CPU is a good example, being an old word whose precise meaning is quite fluid (used to be literally the cabinet with merely the ALU and some registers; instruction decode was just how it was wired together) and so is jargon too.
* until writing that sentence of course.