dienasgramata:

Sic — generally inside square brackets, [sic], and occasionally parentheses, (sic)—when added just after a quote or reprinted text, indicates the passage appears exactly as in the original source. The usual purpose is to inform readers that any errors or apparent errors in the copied material are not from transcription—that they are reproduced exactly from the original writer or printer. A bracketed sic may also be used as a form of ridicule or as a humorous comment, typically by drawing attention to the original writer's mistakes.

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