The standards haven't changed; for the vast majority of JS programmers, this is their first programming language and they have no solid foundation of architecture and security.
So what you get are these overly enthusiastic newbies that want to share their latest achievement with the world (say, a function to left pad a string), and why not include a fancy post-install script with emojis that makes adoption even simpler for other complete noobs? And this is the result.