Why is D unpopular?

[Ola Fosheim Grøstad]

On Monday, 2 May 2022 at 21:31:28 UTC, Walter Bright wrote:
> Nice. Slices are a huge deal.

Why? Old languages like Simula have it for strings (aka 
substrings), to save space or maybe reduce the need for GC by 
having strings ref counted. For other containers you might as 
well use a library type. Never thought of it as something 
special, and I have written a lot of Python code. What would be 
more impactful is to have one line generators like Python, give D 
ranges som dedicated syntax.

In general: improve on those features existing users think are 
language defining.