How Zalgo text actually works
Glitch text is not a font and not an image. It is ordinary letters followed by stacked Unicode combining marks, which is why it survives copy and paste.
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Notes on broken files
How formats actually fail, why most corrupters do not work, and what to do with a deliberately broken file once you have one.
What file corruption actually is
Corruption is not damage to your data so much as damage to the agreement between the file and the program that reads it.
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Testing the error path nobody tests
Malformed input causes a large share of production incidents and is the least exercised code in most codebases. Deliberately broken files fix that cheaply.
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Why flipping random bytes does not corrupt a DOCX
A .docx is a ZIP archive, and that single fact is why most online file corrupters produce a document Word opens without complaint.
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