Consider the
fellow who's devised his own allocation algorithms
using a Fibonacci series introducing his narrative with "Lieber
Leser". Or the fellow who, in his buffer-management scheme makes
reference to "guru beads". Or the database author who talks about
quipus.
This kind of thing is actually a peeve of mine. I have nothing
against learning a little German, find quipus mildly interesting,
etc. But there is a time and place for such stuff, and it's *not* in
the middle of trying to understand and debug someone else's code!
This kind of stuff just comes off as a snotty "I know more than you
do".
It can, certainly. But it can also, at least in my experience, be
anything from pure amusement (of both authors and readers) to citing a
good analogy to the author's mental model, which can help immensely by
aligning the reader's mental model with the author's.
While of course I don't have enough information to do more than take
stabs in the dark, I'd tentatively guess that "Lieber Leser" is at
least partly a play on "Liber Abaci", falling into the "amusement"
category (and relatively harmless if the reader doesn't get it), while
the "guru beads" example may be an instance of the "analogy" case.
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