Why the bug I wrote became a core gameplay mechanic?!

This book is also known as: "How Programmers Turn a Crappy Game into a Timeless Classic with a Single BUG"

Recently, the president of Nitiandang, Gu Fan, once again fell from grace due to a minor bug in his new game.
As a top-notch designer in the industry, all of the games designed by Gu Fan have very distinct characteristics:
At first, players felt that these games were monotonous, dull, and purely revolting garbage.
However, once players discovered a major bug, the gameplay underwent a drastic transformation, rendering them sleep-deprived and unable to quit!
So, players once again launched a major debate over "whether this is actually a bug or a game mechanic."
In response to this, Gu Fan clarified in an interview with all seriousness:
"Hello everyone, I'm the game designer Gu Fan, but you can also call me by my English name: fan·gu (means rebel).
"I want to reiterate firmly that these so-called 'core gameplays' were not part of our company's original design—they are bugs! It's just that we didn't fix them because the players liked them!"