I was talking about code base and application size, not so much the number of users.
Using JavaScript for a large application is not a pleasant experience. I know there are a lot of JavaScript developers out there who have never used anything but JavaScript, and maybe PHP, so they don't know what they're missing. But those of us who have used even just C++, Java, C#, or Delphi will know how critical things like static typing, namespaces, proper modularity and class-based OO, for example, are.
Using JavaScript for a large application is not a pleasant experience. I know there are a lot of JavaScript developers out there who have never used anything but JavaScript, and maybe PHP, so they don't know what they're missing. But those of us who have used even just C++, Java, C#, or Delphi will know how critical things like static typing, namespaces, proper modularity and class-based OO, for example, are.