Hard disagree. If they don't consistently write maintainable and reliable code, they are not 10x engineer no matter how smart they are. e.g. Linus is a classic

Hard disagree. If they don't consistently write maintainable and reliable code, they are not 10x engineer no matter how smart they are. e.g. Linus is a classic 10x or 100x engineer and his code(Linux, Git etc) has been maintained by a completely uncoordinated team for decades.