My two cents

[Martin Nowak]

On Friday, 20 October 2017 at 08:09:59 UTC, Satoshi wrote:
>>> > return foo ?? null; would be so much easier.

Definitely the Elvis operator is a small and sometimes useful 
addition.
https://en.wikipedia.org/wiki/Elvis_operator
Your best bet on getting it, is writing a small DIP, the organize 
consensus for the exact semantics to get it approved.
https://github.com/dlang/DIPs/

It's seems far from being a high priority though. Actually quite 
a pity that of the many valid points you mentioned, the majority 
of the discussion focuses on this triviality.

But as usual, when it's cheap to have an opinion, everyone 
affords one.
Hence if you want to change sth. get your DIP approved. I'd even 
volunteer for the compiler implementation of `?:`.