[dahart]

It'd certainly be a good idea to understand exactly what the alternative is when you see JSON.parse() before deciding it's bad or firing anyone, right? There are definitely some legit cases for JSON.parse(). Not to mention that a full round of you setting clear expectations, giving examples of what's recommended and what's not, giving people a chance to learn & grow, and documenting repeat offenses, should all be done before booting someone...?

Deep-copying JSON objects using stringify+parse is not just faster, but less problematic and less code than writing a recursive object copy routine.