This is great advice! A common sub-case of this is not throwing proper error messages/not validating inputs. Without that, users will be stuck when they make mi

This is great advice! A common sub-case of this is not throwing proper error messages/not validating inputs. Without that, users will be stuck when they make mistakes. If you stick your stand that "it works for me", you have lost the opportunity to fix it for others. When you realize that, you would have lost many users.