I think rather d/dx is the operator. You apply it to an expression to bind free occurrences of x in that expression. For example, dx²/dx is best understood as d/dx (x²). The notation would be clear if you implement calculus in a program.
The BBC report cited mainly focused on the marketing industry, with the fixing mistake people being the copywriters. This gives a strong vibe of Madman, where you have the "old-fashioned" copywriters and the tension between market research.
By story logic, the henchmen really weren't "true people", but metaphors for environment difficulties. For example, a young adult watching superhero comics would think of homeworks, social media negativities, etc.
Aktually, for most Internet services in China today, one already needs a phone number to create an account, which is linked back to the national ID. So, there isn't any anonymity to begin with.
I think rather
d/dxis the operator. You apply it to an expression to bind free occurrences ofxin that expression. For example,dx²/dxis best understood asd/dx (x²). The notation would be clear if you implement calculus in a program.