As a person that started programming on X11 in the late 80s and still uses vim daily, I can't think of a better environment than Visual Studio (possibly with the vi plugin) for programming. It is actually sad that guys like the author of this post and some hardcore Linux geeks pride themselves in the lack of good IDEs.

The two main arguments are:

1) C# needs more boilerplate class code than C++ or other languages. Wrong. It definitely needs less boilerplate code than C++ and is close to Python and Ruby.

2) C# and Visual C++ have huge class libraries, which makes it impossible to use without an IDE. I'm sorry, but I would always go for the language with the big class library, rather than the one without it. Also, C++ has fairly hefty Unix libraries, too.

I guess the real problem is sour grapes. For languages other than Microsoft's and Java (and maybe Lisp - I don't know), there aren't any good IDEs, which really understand your code, are stable and bug-free, and provide useful refactoring tools (e.g., change the name of a method and update all of its invocations). For one, the lack of a good IDE and toolchain really does reduce efficiency in large projects (although I would guess the average Rails project is not that large). It also steepens the learning curve. While learning Scala I've spent ours trying to find a mistake in a single line, which neither the IDE nor the compiler could reasonably point out, but Visual Studio would have explained right away.