Apparently it's being used at Facebook. If they actively injected life into the D ecosystem to the same extent Google does with Go, the momentum might pick up substantially. Look at how late Go arrived--it was announced in 2009--and how popular it already is. Now, that doesn't mean Go or D can necessarily become the next big thing, i.e. the C++/Java killer. But even if they got as far as Python or Ruby, that would be a significant change to the programming landscape.
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Apparently it's being used at Facebook. If they actively injected life into the D ecosystem to the same extent Google does with Go, the momentum might pick up substantially. Look at how late Go arrived--it was announced in 2009--and how popular it already is. Now, that doesn't mean Go or D can necessarily become the next big thing, i.e. the C++/Java killer. But even if they got as far as Python or Ruby, that would be a significant change to the programming landscape.
If Facebook did for D what HHVM is for PHP, maybe people would use it.
They haven't.
Yet.