Zortech C++ was the first C++ compiler available for PCs. I bought it even though I had a Mac, and ran it in emulation, to learn C++. Apple had their AT&T Cfront-based MPW C++ compiler about half a year later I think.
Then Symantec acquired Zortech, and totally destroyed the compiler in version 6, immediately driving everyone to the new Metrowerks just as PowerPC came out.
Then Unix was named as a reference to it.
And now Multiplix is named as a reference to Unix.
We've come full circle, just about.
Multics.
(Timestamp is 6:45:08)
Maybe they like it? It's a perfectly reasonable systems language, even if it's not my personal favorite. It might be something questionable if they used Fortran or Algol-68, sure.
Now, I know the answer as a former D acolyte - it's an interesting language with powerful abstractions, albeit hobbled in some ways - but most people don't, so I think it a reasonable question to ask.
D is very, very fun.
