Exactly. It's just another thing to learn, and usually something you easily pick up through immersion. Jargon files (like The Jargon File [1]) are pretty amusing and can help illustrate where some of the quirkier conventions originated, but you can get by without them.
Ah, I was thinking about that, thanks for the link!
I was quite inspired by the Jargon File, back 15 years ago. But now it is wildly outdated. Flame wars are now called shitstorms and they are held on Twitter. Hackers are not really outcasts anymore, and there is a general acceptance of "hacker culture". Although hackers are now synonymous with foreign state agents rather than criminals.
[1] http://www.catb.org/jargon/html/