[all2well]

>Has no reasonable type system

I'll bite on this. Javascript's type system is with no question my favorite part of it! JS's object model is incredibly powerful, which is why ES6 classes are implemented basically as syntax sugar, and why so many languages can be transpiled to Javascript.

I also don't think that the lack of threading is as much of a problem as you might think it is. For one, it means you can sidestep a lot of the data ordering problems that you get in a threaded environment.

There's no question that Javascript has shortcomings, but so many of the problems that happen in Javascript come from people treating it like Java, when it's a lot more like Lisp. In many ways, the architecture of Javascript revolves around a very simple, powerful object model in a way that's tough to parallel in most other languages.

[grumpyprole]

I'm guessing he mean't static type system. This is the formal meaning of "type" in programming language theory. What you describe is a system of runtime tags.