Why is D unpopular

[forkit]

On Monday, 13 June 2022 at 17:08:55 UTC, Ali Çehreli wrote:
>

also, it should be considered as an 'design' control, not an 
'access' control.

you cannot prevent 'access' by simply saying it's private.

but a 'design' control that's not enforceable, seems pretty 
pointeless.

private(scope) -> would provide the D programmer with an 
optional, enforcable, design control.

Please explain the downside to this.