Time to kill T() as (sometimes) working T.init alias ?

[Mehrdad]

On Thursday, 29 November 2012 at 03:24:40 UTC, Walter Bright 
wrote:
> The original idea is that there should be *no such thing* as 
> default construction of a struct as being anything other than 
> T.init. The default construction of a struct should be a 
> compile time creature, not a runtime one.


Why?