`restricted` member variables

[Sergey]

On Wednesday, 22 June 2022 at 08:06:10 UTC, forkit wrote:
> On Wednesday, 22 June 2022 at 08:00:41 UTC, claptrap wrote:
>>
>> ...
>
> see. i knew there were some anti-OOP in the D community.
>
> thanks for the 'data' ;-)

Concerns about OOP not only in the D-community.. I believe it is 
the new trend in the last couple of years.
For example, chapter Criticism here:

  https://en.m.wikipedia.org/wiki/Object-oriented_programming