Struct that destroys its original handle on copy-by-value

[Joseph Rushton Wakeling via Digitalmars-d-learn]

On Sunday, 26 July 2015 at 11:30:16 UTC, Joseph Rushton Wakeling 
wrote:
> Hello all,
>
> A design question that came up during the hackathon held during 
> the last Berlin D Meetup.
>
> [...]

Ping on the above -- nobody has any insight...?