Once you get used to it, it really is more efficient, but at the price of making it more difficult for outsiders to understand what you're saying.
This is the characteristic feature of jargon. (And fanfic has its jargon like anything else.)
Some jargon actually isn't much more efficient.
ETA: There is now a third thread, so send new comments there.
Since the first thread has exceeded 500 comments, it seems time for a new one, with Eliezer's just-posted Chapter 33 & 34 to kick things off.
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