Want reasonable reference counting? Disable automatic sharing of immutable

[Ola Fosheim Grøstad]

On Sunday, 14 November 2021 at 09:19:24 UTC, Elronnd wrote:
> I don't think this makes pure functions less interesting or 
> meaningful from a practical standpoint.

Just remove the claim that D privides strong purity... Leave it 
at weakly pure and list known caveats.

(It can also never return or terminate the thread by 
overextending the stack, we can just go on and on...)