Why is D unpopular?

[Walter Bright]

On 4/30/2022 1:02 AM, Paulo Pinto wrote:
> As if all those people doing CS research in programming languages needed D's 
> existence to notice what is know in academia for decades.

Bjarne Stroustrup has a PhD in CS. Why didn't C++ have it? Why does every 
iteration of C++ make CTFE work more like D's?

Why didn't any of the other mainstream native compiled languages have it? 
Fortran? Ada? Pascal? Modula 2? (The latter two by CS academic researcher 
Niklaus Wirth.)

CTFE is a *huge* win. Why was this well-known thing languishing in complete 
obscurity?