I often use "--" when I am writing a diary or a column, when I want to include the voice of my heart in my dialogue.

An example is

"Regardless of the content of the messages they send on social networking sites -- whether they are classy or vulgar, intelligent or lascivious, dignified or decent in topic or language --

I could say that it is like using relative pronouns in English, but from the perspective of technical writing, it is not a recommended way of writing.

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In the works of Ishin Nishio, famous for the Bakemonogatari series, there is a distinctive way of writing.

This is a method of omitting closing parentheses in the main character's lines, as opposed to opening parentheses.

"For you, the destruction of this world is just another route.

"Saving the world is just my selfish request, so you don't need to listen to it at all.

"But, Araragi-kun, you should save the girl in front of you.

(I think this is how it was used.)

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I'm sure 99% of the programmers in the world will probably agree with me, and I think this style of omitting parentheses to be quite stressful.

It is "Nest error".

Many computer languages use parentheses such as "{","}" to define their processing units.

If the parentheses are not paired, the computer will say that it cannot process them, resulting in a compilation error.

  for (int i = 0; i < PQntuples(res); i++) {
	for (int j = 0; j < nFields; j++) {
	  printf("%-15s", PQgetvalue(res, i, j));
	printf("\n");
  }

In the above list, the number of "{" does not correspond to the number of "}", resulting in an error.

So, I may have a hell of a time finding it, or I may make a mistake in nesting, and your program may behave like a mess.

Statements with unclosed nests are hard to watch for me.

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Of course, the writing style of Nishio Ishin-sensei is a complete content, including the way he expresses himself, so this is "good".

However,

As a programmer,

"For you, the destruction of this world is just another route.

"Saving the world is just my selfish request, so you don't need to listen to it at all.

"But, Araragi-kun, you should save the girl in front of you"""

I can't help but want to write these three parentheses.