How to Write Unmaintainable Code (1999)

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The essay provides satirical advice on writing code that is difficult to maintain, aiming to ensure job security by creating confusing and unmanageable software.
General principles include making it hard for maintenance programmers to understand the code by hiding the big picture and preventing easy navigation.
Specific techniques involve misleading comments, inconsistent naming, deep nesting, overloading methods, and avoiding encapsulation to obscure code functionality.
Use of ambiguous or similar variable names, such as swimmer vs. swimner, and reusing variable names for unrelated purposes to confuse readers.
Avoiding documentation, using hard-coded values instead of constants, and employing unconventional programming practices to increase code complexity.
Encouraging frequent, undocumented updates and changes to keep users confused and dependent on the original developer.
Advocating for the use of threads excessively and avoiding interfaces in Java to make the code less modular and more intertwined.
The philosophy criticizes language designers for prioritizing elegance over maintainability, suggesting tools and practices that could improve code readability but are often ignored.
Contributors to the list are acknowledged, and the essay has been published and presented in various forums, highlighting its popularity among developers.

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