There seem to be a large number of people who came into the tech-startup industry through programming a bit of Javascript, maybe from a web design background, who never had a formal education in computer science, who suddenly found out that they could write 'full' web apps in Javascript, and they could query a database in Javascript, but never learnt enough to know why this is a bad idea.
I'm not saying this is all bad, or that all Node devs are bad at all. Node is a good tool for a certain set of problems, and there are some excellent tools in the ecosystem and some great devs. But I think it is the easiest ecosystem to be a terrible developer in, and still get stuff working.