Lilith accepted the phone with a skeptical look and glanced at the most upvoted answer to the question.
"Because we dare not delete it!
"Who knows if that idiot designer has set up related data?
"Who knows if that dumb program has called relevant code?
"Who knows if that stupid artist has used relevant materials?
"Who knows if that moronic tester will test related content?
"Who knows if the dumb producer will suddenly tell you they want it?
"Who knows if the idiotic boss will suddenly have a family emergency on the seventh day after an event?
"So, it's safer to keep it.
"As long as the program is still running normally, even if it's a mountain of shit, don't mess with it. If you must, you can try to add something on top of it, but never delete anything willy-nilly, or you might trigger some esoterically bizarre events, leading to irreversible consequences."
The slight twitch of Lilith's mouth indicated that this was indeed a common understanding in the gaming industry.