D somewhat lacks stability. The language is still maturing and there was, for a long time, a major split in which standard library was... standard (and even now

D somewhat lacks stability. The language is still maturing and there was, for a long time, a major split in which standard library was... standard (and even now, that question isn't really clear). There's also the issue of tools - there are only two D compilers I know of, and neither of them is that great (and GDC is buggy, IME). It's also got several warts of its own. When D matures a little more, maybe. At least C++ has a stable standard lib. That's why I'm holding off on using it, and (with the exception of the standard lib) probably why most people are holding back.