HN unfortunately has a lot of people like George Hotz.
They are knowledgeable to a certain level but they simply aren't great engineers who almost always are humble, cautious, thoughtful and respectful of the intentions behind what other engineers build.
Anyone who thinks they can jump in and replace any tech stack without an extensive deep dive of the business requirements, design decisions, cost constraints, resource limitations etc that drove the choices deserves the pain and unemployment that inevitably follows.
They are knowledgeable to a certain level but they simply aren't great engineers who almost always are humble, cautious, thoughtful and respectful of the intentions behind what other engineers build.
Anyone who thinks they can jump in and replace any tech stack without an extensive deep dive of the business requirements, design decisions, cost constraints, resource limitations etc that drove the choices deserves the pain and unemployment that inevitably follows.