Stackoverflow and plenty of Microsoft shops are enterprise enough.
> Haskell, OCaml, D with great IDE support in 2006 ? Do they have that even today ?
I mentioned Lekshat and Merlin for a reason, way better than Ruby with TextMate and Sublime.
Yes plenty of people were using C++ for Web applications in 2000 - 2006, via Apache, ngix and IIS plugins. Microsoft had ATLServer, Borland/Embarcadero still ship their webserver to this day.
I can assert that plenty of Nokia Networks WebUIs, were powered by C++/CORBA and Perl back in 2006. Transition to Java started in 2005.
As did several CRM systems, like the original Altitude Software application server.
RoR is for people that don't care about performance to start with.