: The triple exclamation marks in the filename aren't just for flair; they reflect the curriculum's emphasis that mastering light is the single most critical skill for moving from a hobbyist to a professional portrait photographer.
While less common, the string "important!!!!.AVI" has occasionally surfaced in other digital subcultures:
: Some archived educational materials, such as Vocabulary learning reels , use the term "important AVI" to denote video-based debates or lessons that are essential for students to pass specific exams like the OCR.
In photography and digital art communities—particularly on platforms like Zhihu —this specific file is frequently cited as .