Why can't we derive struct's?

[12345swordy]

On Thursday, 20 December 2018 at 18:04:12 UTC, H. S. Teoh wrote:
> On Thu, Dec 20, 2018 at 04:45:13PM +0000, 12345swordy via 
> Digitalmars-d wrote:
>> On Thursday, 20 December 2018 at 16:10:39 UTC, H. S. Teoh 
>> wrote:
>> > On Thu, Dec 20, 2018 at 03:44:34PM +0000, 12345swordy via 
>> > Digitalmars-d wrote:
>> > > On Thursday, 20 December 2018 at 15:29:50 UTC, H. S. Teoh 
>> > > wrote:
> [...]
>> > > > > [...]
> [...]
>> > > When IgorStepanov quit disappearing on us. 
>> > > https://github.com/dlang/dmd/pull/8378
>> > [...]
>> > 
>> > IIRC, that PR was blocked because of disagreements over how 
>> > ambiguous symbols over multiple alias this types would be 
>> > resolved. Somebody needs to come up with a DIP with 
>> > well-defined semantics for all the details and corner cases 
>> > before this can move forward.
> [...]
>> Then DIP 66 have failed and needs to be rejected.
> [...]
>
> Ahh, I thought you were pointing to dmd PR #3998, the original 
> multiple alias this PR.  My bad.  I see that this is a newer PR 
> submitted just earlier this year. I don't know if it addressed 
> the concerns raised here:
>
> 	https://forum.dlang.org/post/m74pg8$gl4$1@digitalmars.com
>
> which I assume would be required to pass scrutiny by W&A.  But 
> in any case, there was some feedback but Igor seems to have 
> gone MIA. Hopefully he shows up again soon.  I've been waiting 
> for multiple alias this for years now. :-/
>
>
> T

Do we have any means of contacting him? That seems like a job of 
the current PR manager Nicholas Wilson. FFS do we need a crowed 
funding to finished the damn thing? It been years already, and we 
can't rely on a single guy who keeps disappearing for long 
periods of time.

-Alex