What are the prominent downsides of the D programming language?

[James Lu]

On Monday, 21 September 2020 at 09:29:21 UTC, Tomcruisesmart 
wrote:
> Hi,
> I'm looking for healthy conversation.
> What are the prominent downsides of the D programming language?

The compiler error messages are sometimes cryptic
The compilers sometimes crash
You spend more time to start using APIs intended for C++
It doesn't compile to machine code as fast as JavaScript