Why D is not a popular language?

[IGotD-]

On Friday, 8 January 2021 at 16:26:43 UTC, Marcone wrote:
> I've been a programmer for 15 years. I program in several 
> programming languages, only for Windows desktop with graphical 
> interface. I have been programming in D for only 1 year and for 
> me D is the best programming language. Why not invest more in 
> Dlang? Better integration of D with Qt5 and Qt6 and the web 
> would make Dlang rise in popularity.

I absolutely agree, that D should have better integration with 
the Qt library. I've used Qt together with Python (PySide) which 
works pretty well. There is nothing that stops D for being as 
usable with Qt as well. As D has very powerful metaprogramming, 
integrating the signals should be possible. C++ with Qt today 
requires a "pre-compiler" step as it has some additions. Question 
is how Qt can be integrated with D without this extra 
"pre-compiler".